If your Primary Partition is Fat32, i think the best way is to boot in DOS mode, and rename the the basic directories :
C:\Documents and settings
C:\Program files
C:\Windows
to whatever you want, and install windows normally.
is just as easy as this:
just type in DOS mode "ren C:\windows C:\p.ofshit" , and do the same with the other folders.
Don't delete anything and don't format your harddrive. I'm not a musician, but i'm someone who has 15 years sitted in front of a computer, and i know how frustating is that situation.
After the installation of windows, you will be able to check the renamed folders and save your favorits, documents, e-mails, and those stuff that i know you don't want to lose. After saving all your stuff, just delete those 3 folders and that's it.
A clean hard drive.
