Was here awhile back for rootkit infection. Computer painfully slow starting browsers, programs, logging onto websites, and even mouse scrolling. Did SAS scan and it deleted 19 adware files. Avira Antivir won't update. Microsoft Update gives me forbidden error. Something's up. I have been tweaking XP somewhat the last week or so, but have been careful. (Rocketdock etc.) Did aswMBR.exe just now and tried to run combofix.exe but was denied access to shut down Avira.