@TheOwner I began my reply as follows: Using  Win 10 Pro 1803: I tried following your instructions above but would you please clarify "3.Disable CCupdate task in task manager" . In my task manager (Win 10 Pro) I have an associated process called "CCleaner64.exe" and I also have a "CCleaner" entry in the Start-up tab. I've disabled the startup entry, and stopped the process many times (and modified the options in CCleaner itself)  but it recurs after a few minutes as othe