[Techtalk] using FDISK

[arashi]

My computer has been formatted for linux, and I'd like to change it back
so that it runs just Windows (need to do this so it's easier to sell).
How do I use Fdisk to do this?  Normally, I'd read the manual but I have
to be out of my apartment very soon.  If someone would be kind enough to
provide step by step instructions, or point me to a website that does,
I'd appreciate that very much!

Many Thanks
Berenice