1. First, bring up the Run window by simultaneously pressing WIN+R key. For Windows XP users: Type %allusersprofile%\Application Data\MPK and click OK. For Windows Vista and Windows 7 users: Type %allusersprofile%\MPK and click OK. 2. Delete the file S0000. 3. Again launch the Run window by pressing WIN+R key, type runrefog and click OK. 4. Go to Tools from the menu bar and select Uninstall. uninstall refog keylogger Follow the instructions to fully remove REFOG Keylogger from your computer. In Windows 7, the BETA version of REFOG Keylog Uninstall menu doesn’t work. If nothing appears when you select Uninstall, then launch the Run window, type %WINDIR%\System32\MPK\unins000.exe. That should launch the REFOG Keylogger uninstaller.