Hello,
Sorry for the delay. work has been unusually hectic. Here is a status update.
As requested, I ignored the remaining steps listed in post # 19.
I resumed with the steps posted in post #24
In a run box, I typed in services.msc to check on Windows Firewall.
According to that list, Windows Firewall is active and it is started with an automatic startup setting.
Then I checked the Windows Firewall settings in the Security Center.
According to that section, Windows Firewall is active and everything is set.
I created a System Restore point as directed. It was successfully created.
Finally, in a run box, I typed the command sfc /scannown .
The only action that followed was the brief flashing of a black run box/dialog box...Is that the correct action?
Thank you all so much for your continued assistance, iammykyl, Jared44 , and Xeni if she is still following this.
P.S. I still have not reinstalled Norton, so Windows Firewall is the only thing protecting my computer. As such, I am using my laptop to communicate with you all until I am certain my PC is fully functional and safely protected. 