In order to revert to a registry backup, run Windows in Safe Mode. (For an instruction how to run Windows in Safe Mode, please click here.)
Be sure that hidden files are shown. (For an instruction how to show files, please click here.)

Now execute the two files (or maybe it is just one of them) regusers.reg and reglocal.reg in the following folder:

• Windows 95 or 98: C:\Windows\Aplication Data\Spybot - Search&Destroy\Backups\
• Windows ME: C:\Windows\All Users\Application Data\Spybot - Search&Destroy\Backups\
• Windows NT, 2000 or XP: C:\Documents and Settings\All Users\Application Data\Spybot - Search&Destroy\Backups\
• Windows Vista: C:\ProgramData\Spybot - Search &Destroy\Backups\

Answer Yes when prompted to add its contents to the Registry. Then reboot.

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