Hello, Welcome to MalwareTips.
I'm nasdaq and will be helping you.
If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
First your AVAST antivirus is presently disabled, please enable it for your sucurity.
The FSS.EXE belongs to the Farbar Service Scanner program.
Farbar Service Scanner allows you to diagnose network connectivity issues due to corrupted or missing Windows services.
No trace found in your logs. You must have used it sometime ago and there are still some remnant items in the registry.
Clean it with Malwarebytes and restart the computer.
Let me know if the problem is solved.