How to Reboot a Computer Back to Factory Settings

There are several reasons to restore a computer back to factory settings: if you want to sell the computer to someone, correct faulty software downloads, or clear the memory. These steps will help you to get back the factory settings without a problem.
How To Use the Restore Factory Settings CD
1
Make sure to transfer all of the files you want to keep to a USB memory stick or burn to a CD.
2
Put the Restore Factory Settings CD into the CD drive. This CD was packaged with your computer.
3
Confirm you want to restore the factory settings. The computer will begin restoring all settings. Don't disturb your computer, as this process can take several hours. .
4
Reboot the computer to complete the process.

How to Reboot Using the Computer Start-Up
1
Turn on your computer. Right away there will be a black screen. You can restore factory settings without a CD, too. This will reset your BIOS.
2
Press F1 when the black screen appears; you will enter the setup configuration mode. You will be presented with a menu.
3
Select Restore Factory Defaults. Your computer will do all the work for you. As with the CD, this process may take several hours.