Hello,
Ok.
- So please launch AdwCleaner.
 - Do a scan.
 - Then, in the "Services" tab, please unselect "UCGuard".
 - Click on "Clean", the computer will reboot.
 
Finally, please share the file C:\AdwCleaner\AdwCleaner[Cxx].txt (where xx is the highest number you have).
Best regards,