Since you’ve got the paid version of the program, you have the option to request live support from its developers where you will be provided with a customized fix for your issue.

I did search through the registry. Zero hits for “mobifoth.” I ended up downloading and using the paid version of SpyHunter. This has also failed to fix the problem. Although it did reveal a clue. It popped up a dialog for me to approve the activity of php.exe. I build web sites for a living and use PHP on a daily basis, so I clicked “allow.” Upon doing so, a new pop-up opened immediately. Since disabling php.exe, I am no longer seeing pop-ups, but of course I am unable to use PHP for my work.

Did you search through the Registry Editor? Also, you can send us a screenshot of the programs that are installed on your PC (from the Control Panel) – this might help us determine what’s causing the issue.

Did you visit the separate guide for Mac users (there’s a link to it in the guide above)?