Kotor2 uninstall issues!

[XxRY4NRULESxX]

I've been trying to remove Kotor2 from my computer so I could reinstall it (it won't let me play it anymore). I've tried deleting it from add/remove but nothing happens and I've tried removing it from all programs and it says "can't find setup.exe". I tried finding the uninstall file in the Kotor2 files under Lucasarts but there wasn't one. I also tried finding the files through start>run>regedit which I read online should work but it said regedit doesn't exist. I even tried deleting the file manually which successfully worked but when I went to reinstall it it wouldn't let me so I restored the files through backup ones and now when I try to play it it says it isn't installed properly, please restore the installation or reinstall the game, which as I've said, I can't. So I'm stuck in a loop. It was playing fine yesterday. Any help would be greatly appreciated, Ive really gotten into the game again. Thanks for your time. Oh I have Windows XP.

[The Guildmaster]

Hey Ryan, which version of the game do you have? The new combo pack, or an older K2-only?

 

It is odd that when you did Start -> Run -> regedit it came back not existing. Have you ever had malware/viruses?