I recently found out Rootkits were bad. On my computer right before it started experiencing problems i had this weird program and it had a start up right after windows is loaded
Regrun-Parizan-Bootwatch-Antirootkit-Greatis Software (2007-2008)
It gave me 3 options for ever file they think i should delete. Then it had percentages saying if it was good or bad. And if it was bad i deleted them. But i get the suspicion its a rootkit which is messing with my computer start up as i randomly have to re enter my windows key.