For manual kill running background and delete files.
First, download Comodo Cleaning Essential
Run: Autoruns.exe and untick name process or services that running. After that restart PC (should be stopped to run processes or services )
Finally, delete all files that you found it.
If not helping, try to kill tree process or services by KillSwitch (still inside Comodo Cleaning Essential) then delete files.
Similiar @mebaby2 instruction but not clearly.
Have a good day.