[newbie] Uninstalling Linux-Mandrake 8.0

[Dave & Tom]

I recently downloaded the ISO copy of Linux-Mandrake 8.0.  I followed the instructions precisely described in the User's Manual for installation.  After trying out the software, I found out it was not for me.  How do I remove Linux-Mandrake 8.0 and return to my previous OS (Windows 98, [I used a partition]).   Help would be greatly appreciated, Thanks Dave