Start ur computer in safe mode with command prompt and type the followinf command to enable registry editor:- reg delete HKCU\software\microsoft\windows\currentversion\policies\system /v "DisableRegistryTools" and run HKLM\software\microsoft\windows\currentversion\policies\system /v "DisableRegistryTools" after this ur registry editor is enable type explorer go to run and type regedit then follow the following path :- HKLM\Software\Microsoft\Windows\Currentversion\Run on the right side delete the entries which contain 'Brontok' and 'Tok-' words. after that restart ur system open registry editor and follow the path to enable folder option in tools menu HKCU\Software\Microsoft\Windows\Currentversion\Policies\Explorer\ 'NoFolderOption' delete this entry and restart ur computer and search *.exe files in all drives (search in hidden files also) remove all files which are display likes as folder icon. ur computer is completely free from virus brontok