Simple save or backup the files of interest and proceed.
If you are limited to one drive with one partition you may want to partition it, save your files to the second partition, install the os anew on the primary and then copy/restore your files.
I have backups of all my documents on a secondary drive as will as straight copies of the most important ones in a 'storage' folder on the secondary drive. I also have them stored offsite at one or more of my web hosting sites.
I want to erase my hard disk and reinstall windows xp,
however i wish to also keep a few of the files to be used
later. Cn anyone please help with my enquiry?