Uninstall tiny core after frugal install

[selectany]

Hello

I just want to know how to completely remove changes on my system after frugal install, and restore previous state - in my case Windows 98 and Windows2000?

After frugal install - no more grub menu, but it directly loads tiny core stuff.

[maro]

I reckon no person on this planet will be able to assist, if you don't spell out your situation more clearly:

(1) What was the previous state you want to get back to (e.g. which OS, on what kind of file systems and what kind of boot loader)?
(2) How did you install TC (and which version thereof)? What options did you choose (e.g. where did TC got installed)? Which boot loader is in use now?
(3) What steps have you undertaken in your attempt to "go back", and what did happen "on the way"?