If you're installing Windows 10 for the first time or upgrading an old version, you must enter a genuine product key. However, if you're reinstalling Windows 10, you can click the I don't have a product key option to continue (if your computer was already activated).

(If applicable) Select the edition of Windows 10. This selection must match the edition your product key activates.

Insert installation media (e.g. bootable flash drive or optical media). To install Windows 10, you need to load your Windows 10 installation file to a disk or flash drive and insert the disk or flash drive into your computer turn it back on.

If you're installing Windows 10 for the first time or upgrading an old version, you must enter a genuine product key. However, if you're reinstalling Windows 10, you can click the I don't have a product key option to continue (if your computer was already activated).

(If applicable) Select the edition of Windows 10. This selection must match the edition your product key activates.

To enter the configuration, press and hold Del or F2. This key may also be a different key — most computers will display a startup message saying "Press [key ] to enter setup" or something similar, so look for this message when your computer reboots to confirm the key you should press to access the BIOS.

If you're installing Windows 10 for the first time or upgrading an old version, you must enter a genuine product key. However, if you're reinstalling Windows 10, you can click the I don't have a product key option to continue (if your computer was already activated).

(If applicable) Select the edition of Windows 10. This selection must match the edition your product key activates.

On windows setup click next to begin.

If you're installing Windows 10 for the first time or upgrading an old version, you must enter a genuine product key. However, if you're reinstalling Windows 10, you can click the I don't have a product key option to continue (if your computer was already activated).

(If applicable) Select the edition of Windows 10. This selection must match the edition your product key activates.

If you're installing Windows 10 for the first time or upgrading an old version, you must enter a genuine product key. However, if you're reinstalling Windows 10, you can click the I don't have a product key option to continue (if your computer was already activated).

(If applicable) Select the edition of Windows 10. This selection must match the edition your product key activates.

Select the I accept the license terms to agree option to continue.