Step 1:

Save any files that you do not want to delete to an external hard drive or other removable disk. All installed programs will also be deleted, so make sure that you have the install CDs for those programs in order to reinstall them.

Step 2:

Download or save the drivers that correspond to your computer model or motherboard. These drivers can be downloaded from the website that corresponds to your manufacturer of the computer or motherboard.

Step 3:

Make sure that you have to product key. If the product key sticker is not on the computer, which it should be, download a product key finder and write down the product key.

Step 4:

Insert the Windows Install CD into the CD-ROM.

DO NOT install Windows through the auto play application that pops up automatically.

Step 5:

Restart the computer

Step 6:

Press any key at the screen that says "Press any Key To Boot From CD..."

Step 7:

If "Press any Key To Boot From CD..." does not showup, and Windows continues to boot, you need to edit the BIOS settings so that the computer boots from the CD drive before the hard drive.

Step 8:

Follow the instructions on the screen to install Windows

Step 9:

After Windows is installed, the drivers need to be installed. Drivers tell things such as your Ethernet Adapter, Audio Interface, and Display Adapter what to do in order to properly and efficiently function.

Step 10:

After the drivers are installed, download available Windows Updates.

Step 11:

Restart your computer and enjoy!