I've had this on my desktop for about a week.
Hello and welcome to Techspot.
First go HERE and follow the instructions exactly. Especially about updating and HJT placement.
Once you have done that, please post a fresh HJT log.
Regards Howard :wave: :wave:
While we wait for a fresh HJT-log, check the Display Properties, look in the Background and Web tabs, it's probably lurking there.