(((((((( Reply @ SafeSurf ))))))))
SafeSurf, Thank you for taking the time to look into this.
I agree with your comment and the link re: compatibility, and ~Sky~'s comment confirms it. So apparently some other issue is at play here.
Security software CURRENTLY on system:
1) Norton Internet Security - all aspects of the antivirus component have been deactivated (scheduled scans, real-time protection). I'm keeping it for the other components (firewall, systemworks, etc). Don't "think" that should cause a problem. Let me know if it does.
2) Malwarebytes' antivirus 1.50
3) SUPERantispyware 4.49.1000
4) CCleaner 3.03.1366
Security software on system in the PAST:
Don't think I've had anything in the past. I've just recently revived this computer after 4-5 yrs non-use, so its hard to remember. Don't see any processes/services in System Explorer (like taskmanager, but better) that I don't recognize, so no security software remnants are running.
UNINSTALLING: My first choice of uninstalling is the uninstall icon created in the start menu if present, or if not, then via Control Panel's add/remove software.