Use registry cleaner, sweeps clean any file you want to get rid of with no traces.
Advanced System Care v4
Download, install, clean, uninstall
Ah, which ones the most efficient between those two^ ?
erase your internet history, delete the hacks then delete them from your recycle ben, go to file serach and serach for hacks if it finds anything delte it and then from your recycle ben
First of all, if you really want to get into the clan badly, you would search for the cham name by clicking start and then deleting any files that are affiliated with the hack. After clean recycle bin.
Download "Search All" and type in words that remind you of hacks such as chams, hack. MPGH, aimbot, Gordon, injector, etc., it let's you see what hacks you have on your computer.
Actually the reinstall windows only takes around 1 - 2 hours.
I would just make a clan of my own and not worry about others.. :P