Your first response to the problem I'm experiencing with WindowBlinds seem to be due to the virus protection program ESET.
I assumed that my problem then was the virus protection I'm using (McAfee) and by extension that a McAfee problem explanation was
The first test would be to disable it (uninstall would be preferred) and test to see if you still have the issue (I suspect you would not). You will remain 'protected' as Windows Defender would then takeover that duty.
Stardock Support Manager