1. In Registry Editor (Start > Run... > regedit), navigate to:
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon
2. Find the "Userinit" key
3. it probably contains:
%system32%\wsaupdater.exe,
where %system32% represents the path to the System32 folder. For example, C:\Windows\System32
4. Instead of wsaupdater.exe, the data should contain userinit.exe,. Using the example above, change it to:
C:\Windows\System32\userinit.exe,
Do not forget to add the comma at the end!!!
5. Close the Registry Editor and reboot your computer.