In the BIOS, choose the Standard CMOS Setup option, look for First Boot Device, and select CD/DVD, so that your PC boots from the Windows 7 DVD. This information normally appears on the first screen when you turn on your PC, depending on your motherboard model. Restart your PC, and press F5, F8, F10, F11, F12, and Del to access the BIOS. How To Reformat and Clean Install Windows 7 on your PC You can back up your information onto a DVD, a USB key, or an external hard drive. Before formatting your PC, we recommend that you perform a backup of your data, since the reformatting process will permanently erase all information from the hard disk. This tutorial will walk you through a fairly simple process.
If your computer has Windows 7, you don't need to be a computer expert to reformat it. After reformatting, you can reinstall the operating system and your computer often behaves like new. In some cases, formatting your PC may be the last resort to remove viruses that can not be eradicated with existing antivirus programs.
