While trying to to remove some malware/virus the computer hung while an antimalware program was quarantining and removing a single file, it hung up for over an hour. Computer froze. I powered down and restarted in safe mode, which immediately failed then restarted, I let it progress to the normal login which took ~5 min to get me to my desktop, no icons, no taskbar. Was able to get to task manager but when attempted to run explorer.exe manually or msconfig or regedit it just closes. The only thing I am able to perform from task manager is log off or restart the computer. I attempted windows repair from cd twice with no success, ran chkdsk from recovery console with no errors. Any ideas or help would be appreciated before I re install XP.