Looking for a solution on the web, I was led to Unhackme.
I have downloaded the free download, run the scan, Fixing and Removing as required, then done a PC Restart and the problem pops up again, as soon as I sign in.
I have then uninstalled unhackme. reloaded the free download and scanned./Fix/Delete/ RestartPc 3 times and still the pop-up is there, driving me nuts.
How do I clean it out PROPERLY.