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WorksheetsUnit 8 Lessons 8.1 - 8.8 All Practice Questions
Total questions: 80
Worksheet time: 42mins
Which remote access solution is built into macOS?
Quick Assist
Remote Assistance
Screen Sharing
Remote Desktop
You are a network administrator for a large financial institution. There are several account advisors who are constantly on the road with their Windows laptop devices. You want to be able to occasionally check on the health of these laptops, including the ability to receive automated alerts for any unusual activity that may indicate some kind of security breach. Which of the following remote management technologies would BEST help you monitor these laptops?
Desktop management software
RMM
MSRA
File transfer software
Which remote access solution provides you with full remote access to the graphical desktop of a Windows system, including the ability to run programs, manipulate files, and restart or power down the computer?
Remote Assistance
Remote Desktop
Screen Sharing
Telnet
Which of the following actions should you take to BEST secure your video conferencing software? (Select two.)
Disable the software when not in use.
Apply spam filters.
Use strong passwords.
Use waiting room features.
Use recording.
A user works primarily in your organization's production area. However, she frequently needs to access data stored on the Windows 11 desktop system in her office while on the production floor. She would like to be able to use a Remote Desktop connection in the production area to remotely access her desktop system over the network. Which desktop user groups could you make her user account a member of in order to enable this Remote Desktop connection? (Select two.)
Administrators
Guests
Users
Remote Desktop Users
Power Users
As a Help Desk Level 2 operator, you are attempting to use Remote Desktop to connect to an employee's Windows desktop to resolve a printing issue that has been given to you from another Level 2 operator. You know that both your Windows computer and the employee's Windows computer are configured correctly for this Remote Desktop connection. You also have the correct connection information. However, you are having problems accessing the employee's desktop. Which of the following is the MOST likely reason that you cannot connect to the desktop?
Your firewall is not set up to allow the connection through port 3389.
The remote session from the original Level 2 operator has not been disconnected.
The employee's computer is turned off.
You have the wrong IP address for the employee's computer.
You provide desktop support for a small company. The company has two locations in the same city, but they are several miles away. You get a call from a user who is having problems installing a new device. You try to tell the user how to update the device driver over the phone, but he is having a hard time understanding your directions and is becoming frustrated. What is the BEST method for resolving the user's issue?
Establish a Remote Desktop connection and update the driver.
Drive to the other location as soon as possible and update the driver.
Tell the user to wait until you are scheduled to be in that location.
Escalate the call to another technician or your supervisor.
You provide desktop support for a small company. The company has two locations in the same city, but they are several miles away. You get a call from an employee who is having problems with an application. He tries to describe what he is doing in the application, but you just can't understand what might be causing the problem. Which of the following is the BEST way to provide the assistance the employee needs? (Select two.)
Drive to the other location as soon as possible and then watch as the employee performs the task.
Establish a Remote Assistance connection and watch what the employee is doing.
Establish a Remote Desktop connection and perform the task on the employee's system.
Schedule the employee to receive more training on using the application.
Establish a Quick Assist session with the employee and watch what he is doing.
Which of the following is true of Remote Assistance?
The remote user initiates the session.
Only one user is logged in at a time.
It is designed to improve user productivity.
The user initiates the session.
Rachel wants to use Screen Sharing to allow a system administrator to remotely access her Apple iMac. However, when she initiates the Screen Sharing session, the administrator is not able to access her iMac desktop from his iMac computer. What is the MOST likely reason that the administrator cannot access the Screen Sharing session?
The Observe mode is not enabled.
The administrator is not included in her Specific Users Only list.
Screen Sharing is not enabled on Rachel's iMac.
The VNC Viewer setting is not enabled.
Match each Active Directory definition on the left with its corresponding component on the right.
A collection of network resources that share a common directory database.
Domain
A folder-like container that organizes network resources.
Organizational unit (OU)
Default containers used to organize Active Directory objects that cannot be deleted.
Built-in containers
A resource within Active Directory.
Object
A Windows server that holds a copy of the Active Directory database.
Domain controller
A new computer has been added to the sales department and needs to be joined to the CorpNet domain. Which of the following System Properties settings must you use to make the change?
System Properties > Computer Name
System Properties > System Protection
System Properties > Remote
System Properties > Advanced
You are your company's Active Directory system administrator. The company has branch offices in several countries, including Mexico, Argentina, Canada, and the UK. The company only has a total of 250 employees organized in the same departments in each office. However, the company is projected to expand rapidly in the next two years.
You want to create a tree of organizational units (OUs) that can adapt to the rapid growth without re-organizing the OU structure in the near future. You also want to be able to easily assign rights to certain network resources based on departmental organizational roles.
Which of the following solutions would BEST meet your requirements?
Organize the OUs at the top level by department; then use group accounts to help control resource rights.
Organize the OUs at the top level by employee and resource; then assign specific rights to each user.
Organize the OUs at the top level by office (country); then use group accounts to help control resource rights.
Organize the OUs at the top level by resource and office (country); then assign specific rights to each user.
Which of the following is a valid distinguished name for the MarketSpace common domain name?
MarketSpace/com
MarketSpace.org
MarketSpace_com
Market.Space.org
You are the owner of a small startup company that consists of only five employees. Each employee has their own computer. Due to the type of services your company offers, you don't foresee the employee count increasing much in the next year or two. As a startup company, you want to keep costs low and facilitate easier file sharing and internet, printer, and local network resource access. Which of the following would be the BEST implementation for your business?
A) A workgroup
B) A forest
C) A tree
D) A domain
Administrative Templates are Registry-based settings that you can configure within a GPO to control a computer system and its overall user experience.
Which of the following can you do with an Administrative Template? (Select two.)
Allow users to run only the files you specify.
Restrict access to Control Panel features.
Determine who can add trusted publishers.
Control notifications.
Identify allowed or blocked software.
A user has complained about not being able to remove a program that is no longer needed on a computer. The Programs option is not available in Control Panel.
You suspect that a policy is enabled that hides this option from the user. But after opening the Local Group Policy Editor, you see that the policy to hide Programs is not configured. You know that other users in this domain can access the Programs option.
Where should you look next to determine whether the policy is enabled?
The Default Domain Policy GPO.
GPOs linked to organizational units that contain this user's object.
GPOs linked to the domain that contains this user's object.
The Local Group Policy.
Match each Group Policy setting on the left to the appropriate description of how the setting is enforced on the right.
Causes the policy to be enforced
Enabled
Does not change the current setting for the policy
Not configured
Prevents the policy from being enforced
Disabled
The Hide Programs setting is configured for a specific user as follows: After logging in, the user is able to see the Programs and Features option. Why did this happen?
The GPO linked to the user's organizational unit is applied first, so this setting takes precedence over settings that are applied later.
The Default Domain GPO is applied last. It is set to Not configured, so it doesn't change the configuration.
The Local Group Policy is applied last. It is set to Enabled, which makes the Programs and Features option visible.
The GPO linked to the user's organizational unit is applied last, so this setting takes precedence.
You manage a workstation that is not part of a Windows domain. Users on this computer should not be permitted to download applications from the Windows Store.
Which administrative tool can you use to enable a policy that turns off the Store application for all users on this computer?
Control Panel
Windows Firewall
Local Group Policy Editor
Programs
Settings
You have recently purchased a third-party application and installed it on your workstation. However, after doing some maintenance work on the users and groups on your Windows system, the application begins to display error messages each time you try to run it. What is the MOST likely cause of the issue?
You deleted a group that was created by the third-party application.
You assigned the application user account to the Users group.
You switched from a domain account login to a local login.
You assigned the wrong permissions to your user account.
A user calls to report a problem. She is trying to install an application on her new Windows 11 system, but the installation will not proceed. Her user account is a member of the Users group. What is MOST likely causing the installation issue?
The application is incompatible with Windows 11.
She is not using an app from the Microsoft Store.
Her group membership does not allow her to install new software.
She is not a member of the Power Users group.
Which of the following is true of groups on a Windows system?
A group allows multiple users to share a single logon.
Users and local resources, such as printers and shared folders, can be made members of a group.
Group members have the access rights that are assigned to the group.
Users can log on as the group and have all the assigned access rights.
Which of the following must be set up before you can register a facial or fingerprint scan for your account?
Security key
Picture password
Password
PIN
You have just installed Windows 11 on your laptop, purchased an infrared camera, and set up Windows Hello facial recognition as your login option. As part of the setup process, you enter a PIN as a backup login method.
After a few weeks of using facial recognition login, your infrared camera fails, and you are asked to enter your PIN. Because it has been several weeks, you have forgotten the exact number. You attempt to enter your PIN at least 24 times, but are never locked out. What is the MOST likely reason that you have not been locked out after several failed PIN login attempts?
You have failed to set up both your TPM chip and BitLocker for lockout.
Your laptop does not have a TPM chip, and you have not set up BitLocker for lockout.
Your laptop has a TPM chip, but you have failed to set up BitLocker for lockout.
You have set up BitLocker for lockout, but you have also failed to set up your TPM chip.
Which Active Directory service simplifies how users log in to all the systems and applications that they need?
SSO
Workgroup
Domain
PIN
Which of the following Windows 11 options lets you associate your local user account with an online Microsoft account?
Users and Groups
Manage my accounts
Family & other users
Sign in with a Microsoft account instead
You recently installed a Windows 11 system. During the installation process, you elected to sign in to the system with a local user account. After using the system for a time, you decide to begin using an online Microsoft account to authenticate to the system instead. Click the Settings app option you would use to do this.
System
Accounts
Network & Internet
Privacy & Security
Personalization
What does Windows 11 do when you log in with an administrator account with elevated privileges?
Assign you a unique administrator token.
Assign you a user and an administrator token.
Notify you that you have administrative privileges.
Use your credentials to assign you administrative privileges.
You want to configure User Account Control so that you see the permission prompt only when programs try to make changes to your computer (not when you make changes). You do not want the desktop to be dimmed when the prompt is shown. What should you do?
Disable UAC.
Configure UAC to Never notify.
Configure UAC to Always notify.
Disable the Secure Desktop.
Which of the following protocols provides authentication and encryption services for VPN traffic?
SSL
TCP
L2TP
IPsec
A salesperson in your organization spends most of her time traveling between customer sites. After a customer visit, she must complete various managerial tasks, such as updating your organization's order database. Because she rarely comes back to the home office, she usually accesses the network from her notebook computer using Wi-Fi access provided by hotels, restaurants, and airports. Many of these locations provide unencrypted public Wi-Fi access, and you are concerned that sensitive data could be exposed. To remedy this situation, you decide to configure her notebook to use a VPN when accessing the home network over an open wireless connection. Which of the following key steps should you take as you implement this configuration? (Select two. Each option is part of the complete solution.)
Configure the browser to send HTTPS requests directly to the Wi-Fi network without going through the VPN connection.
Configure the VPN connection to use IPsec.
Configure the browser to send HTTPS requests through the VPN connection.
Configure the VPN connection to use MS-CHAPv2.
Configure the VPN connection to use PPTP.
Which of the following VPN protocols was developed by Cisco and can be used to route any Layer 3 protocol across an IP network?
L2TP
IPSec
SSL
GRE
You want to use a VPN tunneling protocol that can encapsulate other LAN protocols and carry the data securely over an IP network. Which of the following protocols is suitable for this task?
PPP
PPTP
NetBEUI
SLIP
Which of the following was developed by Microsoft as one of the first VPN protocols and supports only TCP/IP?
PPTP
IPSec
L2TP
SSL
What is a VPN's primary purpose?
Allow the use of network-attached printers.
Support the distribution of public web documents.
Allow remote systems to save on long-distance charges.
Support secure communications over an untrusted network.
Which of the following statements about an SSL VPN are true? (Select two.)
Uses pre-shared keys for authentication.
Encapsulates packets by adding a GRE header.
Encrypts the entire communication session.
Provides message integrity using HMAC.
Uses port 443.
Which of the following protocols can your portable computer use to connect to your company's network via a virtual tunnel through the internet? (Select two.)
VNC
PPTP
L2TP
RDP
PPPoE
Your organization employs a group of traveling salespeople who need to access the corporate home network through the internet while they are on the road. You want to funnel remote access to the internal network through a single server. Which of the following solutions would be BEST to implement?
Host-to-host VPN
VPN concentrator
Screened subnet
Site-to-site VPN
While on a business trip, an employee accesses the company's internal network and transfers files using an encrypted connection. Which of the following digital security methods is the employee MOST likely using?
Firewall
Access control list
DLP
VPN
Which user type is the Windows Beta channel recommended for?
The average user
Commercial users
Administrators
Highly technical users
Which of the following tools can manage bandwidth usage and deployment times for updates?
Microsoft Endpoint Configuration Manager
Windows Server Update Services
Windows Update
Windows Update for Business
Which of the following Windows Update options releases updates as soon as they are available to the public?
Windows Server Update Services
General Availability Channel
Windows Insider Program
Long-Term Servicing Channel
Which of the following terms describes a Windows 11 operating system patch for a desktop that targets a specific problem and is released on a short-term, periodic basis?
Targeted software patch
Hotfix
Windows as a Service
Service pack
Which of the following actions directly improves system security on a Windows workstation?
Create a password reset disk.
Disable automatic reboot on an error.
Install the latest updates.
Create regular restore points.
You want to make sure that you always have the latest patches installed on your workstation for an order entry application created by the DataComLink corporation. What should you do to ensure this? (Select two.)
Configure the application to automatically download and install updates as they are released.
Configure Windows Update to download and install updates automatically.
Check the DataComLink website regularly for patches and updates to the software.
Configure Windows Update to download updates for other Microsoft products when Windows is updated.
Download any patches from the company as you are notified of them.
You would like to set Windows Update to delay updates for a week. Which of the following Windows Update settings would you use to configure the delay?
Advanced Options
Update History
Windows Insider Program
Pause Updates
Recently, a Windows 10 update was automatically downloaded and installed on your Windows 10 system. Now, your contact manager database application no longer works correctly. You want to uninstall the latest updates to see if the application starts working again. Click the option you would use in the Settings app to do this.
Automatic (recommended)
Give me updates for other Microsoft products when I update Windows.
Defer upgrades
View your update history.
Choose how updates are delivered.
You work for a large company as the IT administrator. With the many external attacks being perpetrated in the form of security breaches, you are concerned that your Windows 11 computers may be vulnerable. You also want to ensure that Windows is using the latest features. Which of the following would BEST protect your computers?
Scheduled disk maintenance
Windows updates
Scheduled backups
Antivirus updates
You are the system administrator for several Windows servers in your company. Instead of scheduling the same updates for all the Windows servers, your systems engineer would like to begin approving the updates based on specific groups of servers. In addition, the systems engineer would like you to begin checking the update logs on the servers on a regular basis to determine if and how the updates were applied. Which of the following tools would BEST help you meet the new requirements requested by the systems engineer? (Select two.)
Windows Update for Business
Advanced Options
Windows Insider Program
WSUS
Update History
An administrator configures the Time Machine application on macOS computers and develops scripts that use the tar command on Linux computers. Which of the following best practices is the administrator following?
Driver and firmware updates
Patch management
Scheduled disk maintenance
Scheduled backups
You need to back up user data on a Windows 11 system. The computer has a single SSD storage device installed that contains both the Windows operating system (in C:\Windows) and user profile data (in C:\Users). You plan to do the following:
-- Use Backup and Restore to back up user data.
-- Run the backup automatically every night at 11:00 p.m.
-- Store the backups in the C:\Backups folder.
-- Include a system image in each backup.
Will this configuration work?
No, backups created with Backup and Restore can't be stored on the drive that contains the information being backed up.
No, Windows 11 does not include the Backup and Restore utility. You must use File History instead.
No, system image backups can't be scheduled with Backup and Restore. You must run them manually.
Yes, all of the requirements for using Backup and Restore have been met.
Match each backup method on the left with the correct description on the right.
Backs up all files (even those that have not changed).
Full
Backs up every file that has changed since the last full or incremental backup.
Incremental
Backs up every file that has changed since the last full backup.
Differential
Compares the data found in the last full backup with the current content and uploads only the changes.
Synthetic
Why should you store backup media offsite?
To prevent the same disaster from affecting both the system and its associated backup media.
It is required by government regulations in the USA.
To improve the efficiency of the restoration process.
To reduce the possibility of theft.
You work as the IT administrator for a small startup company. Lily's computer has two internal hard drives and runs Windows 11. She is concerned that she may accidently delete a personal file or that her primary hard disk may fail at some future time, causing her to lose her personal files. She has come to you for suggestions about how to protect her files. Due to the size and revenue of this startup company, resources are somewhat limited. Which of the following would BEST protect Lily's files?
Back up her files using File History.
Purchase a third-party backup software program.
Configure scheduled disk maintenance.
Create a network share to which Lily can copy her files.
You need to specify which location File History should use to store backup data. Which Control Panel option would you use to do this?
System and Security
Network and Internet
Hardware and Sound
File History
As the system engineer for a large financial institution, you have decided to implement a backup system on all the Windows 11 laptops used by the financial consultants to ensure that critical customer data is securely stored.
Your requirements for the backup system include:
--Only customer data files created by the financial consultants need to be backed up.
-- Data backed up to a flash drive.
--Backed up files must be uncompressed.
--Include contact lists and desktop preferences.
Which of the following backup solutions BEST meets your requirements?
File Backup
File History
Differential
System Image
Which of the following describes the grandfather backup in a grandfather-father-son (GFS) rotation scheme?
A full backup that is stored onsite.
An incremental backup that is stored onsite.
An incremental backup that is stored offsite.
A full backup that is stored offsite.
You have created a system image of Windows 11 on your laptop before updating several applications on your hard drive. The system image is stored on an external hard drive. After updating one of the applications, you are required to restart your laptop. However, during the restart, you receive an error message that the system is unable to reboot. You try to restore the system image from the external hard drive, but you are unsuccessful. Which of the following do you need to do BEFORE successfully restoring your Windows 11 system using the system image?
A) Copy the system image to the Windows hard drive and then start the recovery process.
B) Use a recovery disc to restore the operating system.
C) Set the BIOS/UEFI settings to boot from the external hard drive first.
D) Copy the system image to a network computer and access the image from there.
Which operating system uses the Time Machine backup program?
Linux
Windows
macOS
Android
What tool can you use to create a full system image of your Windows drive?
Windows Installation Media
Backup and Restore
Recovery drive
System Repair
System Restore is currently disabled for all volumes on a Windows 11 system. You need to enable System Protection for the C: volume. Click the option you would select to do this.
System Restore
Configure
Create
Advanced
Hardware
You have recently purchased a Windows 11 laptop and have just installed several applications, including a graphics editor. Using the application, you have edited several images that you need to send to a company executive for a presentation. However, you are experiencing problems using the application and are deciding whether or not to use the Reset this PC option to remove the application and try re-installing it. What can you expect to happen if you use this option? (Select two.)
You are given the choice to keep your edited images.
All your edited images will be removed.
The laptop will be reset to the factory defaults.
You can choose to remove only the graphics editor.
The laptop will be reset to the last restore point.
You are an IT technician for your company. Fred calls you to complain that every time he opens his internet browser, the default home page has been changed to a site he is not familiar with. You suspect this change is being caused by a malware infection on his system. However, after you run antimalware and antivirus software on Fred's system, it is still having the same issue. Which of the following would be the next BEST way to remove the malware?
Purchase a new disk and deploy a backup image of Windows.
Format Fred's disks and perform a clean installation of the operating system.
Perform an image deployment from a backup image to restore Fred's computer to a known good point.
Restore Fred's computer back to a previous restore point.
Micka, a tech-savvy employee, tried to upgrade her computer from Windows 10 to Windows 11 from the internet. Something went wrong during the upgrade, and Micka's computer will no longer boot to Windows. She has brought her computer to the IT department for you to repair. You have tried to repair the computer, but you are unable to get it to boot to Windows
Which of the following methods would be the QUICKEST way to get Micka's computer back to its original Windows 10 operating system?
Connect her computer to your external flash drive and install Windows 10 from the data it contains.
Restore her system using the recovery partition.
Using the Windows 10 DVD, perform an upgrade.
Download and reinstall Windows 10 from the internet.
System Restore has been enabled for all volumes on a Windows system. Recently, a new network driver was installed on the system. However, the driver code contained bugs, and now your network board no longer functions. You are unable to access the internet to download an older version of the driver. You need to revert the system to a prior restore point that was taken before the driver was installed. Click the option you would use to do this
System Restore
Configure
Create
Advanced
Hardware
You have just installed the latest Windows updates on your Windows 11 computer. After the computer has rebooted, you get the following error message: Error: Windows failed to start. A recent hardware or software change might have caused the issue after you installed Windows updates. Because your computer won't start, you have booted your computer into the Advanced Options section of the Windows 11 recovery environment (see image below). While troubleshooting this issue, which of the advanced options would be the BEST to try first?
System Restore
Start-up Settings
Start-up Repair
Command Prompt
System Image Recovery
While running a presentation editor on your Windows 11 laptop, your computer locks up. When you try powering on your computer, Windows 11 will not start. Which of the following tools should you use FIRST to try and resolve the issue?
Restore Files
Startup Repair
Backup and Restore
Recovery Drive
Which of the following is true about System Restore?
User data will be affected.
Device drivers installed since the restore point will not be affected.
If the restore freezes, you can cancel the restore process.
System changes made since the restore point was taken are undone.
You have just finished installing a new Windows Update when your computer locks up. What should you do first?
Complete a System Restore
Run a System Repair
Run a System Repair
Uninstall the Windows Update
Which of the following actions occur during the Pre-EFI Initialization (PEI) stage of the UEFI boot process? (Select two.)
Device drivers are loaded into memory.
Power is supplied to the CPU.
The EFI boot manager initializes.
System memory is initialized, verified, and allocated.
The CPU and chipset are verified and fully initialized.
Which option is the first process that runs once a computer is powered on and the CPU loads the BIOS?
POST
Boot Loader
WININIT
Winload.exe
Rodney, an employee in the Research Department, reports that he is experiencing blue screen errors while using his Windows computer. You ask Rodney if anything has changed on the computer recently. Rodney explains that he recently installed a TV tuner board in an expansion slot, and now he has to reboot the computer every time he loads the TV tuner application to watch TV. You need to fix Rodney's computer and prevent him from using the TV until you can install an updated driver. What should you do?
Boot the system from a Windows installation disc and select the Startup Repair option.
Boot the system in Safe Mode. Disable the TV tuner driver in Device Manager.
Use the Reset This PC option in the Settings app.
Re-install Windows from the installation disc.
Reboot the system and select Safe Mode. Edit the properties of the TV tuner driver in Device Manager and select Roll Back Driver.
You have been troubleshooting startup errors on your Windows 11 computer by undoing recent changes, such as rolling back device drivers for a local printer and new graphics card while in Safe Mode. However, the changes you are making are not resolving the startup errors. Which of the following steps will MOST likely help you to find the specific cause of the error without the need to re-install Windows?
Disable automatic restart on system failure.
Launch and use the utilities provided in the Recovery Environment.
Disable Driver Signature Enforcement.
Disable and then enable devices and services one by one.
You have booted your Windows workstation in Safe Mode and enabled boot logging. To which log file is the boot logging information now written?
Bootlog.txt
Nbtlog.txt
Myboot.txt
Boot.log
You experience startup errors after you install a new device. What should you do FIRST to resolve the issue?
A) Boot in Safe Mode and roll back the driver.
B) Disable automatic restart.
C) Boot in Safe Mode and disable all unnecessary devices.
D) Recover the system image.
Marcus was attempting to edit some registry settings on his Windows 11 system. Now, when he tries to boot his system, it hangs after the Windows splash screen is displayed.
Because he cannot boot to Safe Mode, he boots the system from the Windows installation disc and accesses the Recovery Environment. Which Recovery option should Marcus use FIRST to help resolve his boot issue?
Use BOOTMGR
Reset this PC
Go Back to the Previous Build
System Restore
You are troubleshooting a Windows 11 system that won't boot. The system appears to initialize just fine, and POST completes correctly.
However, Windows does not load, and an error message is displayed on the screen, indicating that the operating system is not found. You determine that the Master Boot Record (MBR) is corrupt. To fix the issue, you perform the following steps:
1) Boot the system from the Windows 11 installation DVD.
2) Access the Recovery Environment.
3) Open a Command Prompt window.
Enter the command that you should run at the Command Prompt to address this issue.
bootrec /fixmbr
chkdsk /f
sfc /scannow
diskpart
Your Windows 11 system powers on, but there is no image on your display. You have not installed a new video card, and have already checked to make sure that the monitor is connected properly to the computer, is plugged in, and is turned on. Which of the following is the BEST next step you should take to try to resolve the issue?
Check the motherboard documentation for information on beeps.
Use System Restore from Safe Mode to select a working restore point.
Boot the system from the installation disc and repair the system.
Verify that the BIOS/UEFI is configured to use the correct video adapter.
Your system hangs immediately after the BIOS information is shown and displays an error loading operating system error message. What is the MOST likely source of the problem?
Corrupt MBR or partition table
Inaccessible boot disk
Missing or corrupt file
Corrupt boot sector
