- open windows login
- Shif + menu Restart
- computer login safe mode
- click Troubleshoot Reset your PC or see advanced options
- click Advanced options
- click Command Prompt Use the Command Prompt for advanced troubleshooting
- copy C:\Windows\System32\Utilman.exe c:\Windows\System32\Utilman.exebak
- copy c:\Windows\system32\cmd.exe c:\Windows\system32\Utilman.exe /y
- exit reboot