M_ _ _ _ _ _ _ _ D_ _ _ _ O_ _ _ _ _ _ _ _ is a utility in
Microsoft Windows designed to increase access speed by
rearranging files stored on a disk to occupy contiguous storage
locations.

(a)  

R_ _ _ _ _ d_ _ _ _ are commonly used to remove viruses from
computers when it is impossible to use Safe Mode.

(a)  

When you start to hear extra grinding sounds, or your computer
doesn't open files as quickly as it did before, it's time to d_ _ _ _ _ _
_ _ _.

(a)  

To c_ _ _ _ _ _ _ _ the desktop, select Start > Control Panel >
Display or right-click the mouse on a vacant area of the desktop and
choose Properties from the pop-up menu.

(a)  

Your computer performance and speed depend a big percentage
of how you m_ _ _ _ _ _ _ your computer hardware.

(a)  

You can o_ _ _ _ _ _ _ your hard drives to help your computer
run more efficiently, or analyze them to find out if they need to be
optimized.

(a)  

D_ _ _ _ _ M_ _ _ _ _ _ is a Control Panel applet in Microsoft
Windows operating systems, which allows users to view and control
the hardware attached to the computer.

(a)