permission hijacked

I'm on a win7 ultimate, someday it just suddenly dont allow me to change/delete most of the things in the computer. I think its probably a malware, so im here seeking for help.
Hope anyone can reply me soon.

Harry

Hi harry1126,

Please refer to the forum FAQ and the instructions in post #2 on how to provide the logs from Farbar Recovery Scan Tool and aswMBR, which are used in the preliminary analysis.
http://forums.spybot.info/showthread.php?t=288

Then start a new topic providing the logs as shown in that FAQ and a volunteer analyst will advise.

Best regards.