Re: I am infected, unable to access registry, taskmanger need help
boot into Safe Mode (or schedule a boot-time scan) and scan your Pc with your AV and two AntiSpys. A safe-mode or a boot-time scan is always the preferred way in case of a severe malware attack. Finish off with cleaning up your residual PC junk with CCleaner. Reboot.
if problems persist run the HijackThis Tool, and copy-paste its saved log-file in www.hijackthis.de