I wouldn't reformat just because screen saver isn't working , Infact its not
a good idea to use a screen saver but , If you still want to reformat then
have a view at the link below ...
If you have a windows xp disc ? What you need to do is enter your bios
screen and make sure you can boot off your CD Rom drive , Meaning your boot
order must be set up to boot off the CD Rom first , Afterward once that is
done just save that setting ..... At that point just do the following
1. Insert your Windows XP CD into the CD-ROM drive and restart your
computer.
2. At the Windows XP Setup menu, press Enter to continue setup.
3. Press F8 to agree the License Agreement. Then press Esc to continue a
fresh copy without repairing.
4. Press D to delete the selected partition, then press Enter.
5. Press L to confirm. After you delete the partition, press Enter to
install Windows XP. You can use the UP and DOWN arrows keys to select and
format the partition as NTFS or FAT32. Press Enter again to format the
partiton.
6. Remove any floppies or CD-ROM before your computer restarts. Then follow
the setup instructions to finish the installation process.
Also you might want to check out these websites in how its done as well
http://www.winsupersite.com/showcase/windowsxp_sg_clean.asp
http://www.michaelstevenstech.com/
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