g suess,
If you haven't already disabled Windows Fast Startup, I would recommend you do so first. You can review Peterwebs write up and referenced links on how turn it off here
Once Fast Startup is set to off, try the following:
1. Using the NRnR tool, ensure its set under advanced options to remove only.
2. Once that's done, using windows explorer, look for any of the following left over folders and delete them if found. Note, these will very depending on your OS.
C:\Users\Public\Downloads (Norton - original downloaded files)
C:\Users\your user name\Downloads (original downloader file)
C:\Users\your user name\AppData\LocalLow (any folder in reference to Norton)
C:\Program Files\(Norton Security folder)
C:\Program Files (x86)\(NortonInstaller folder)
C:\Program Files\Common Files\AV\(Norton)
C:\Program Files\Common Files\(Symantec Shared)
C:\ProgramData\(Norton folder)
C:\ProgramData\(NortonInstaller folder)
C:\ProgramData\(Symantec folder if present)
3. Reboot your PC.
4. log into your Norton account and select download your product and reinstall clean copy.
5. Once the installation finishes and updates run, reboot and then run live updates again until no more are available.
6. Launch Norton and ensure VPN is set to off (recommend leaving off until Norton provides fix) I'd also recommend leaving PW manager and Safe Web (Browser Extension) off for now.
7. Set system tray Icon for Norton to always show Icon and notifications.
8. Reboot one more time. Note, if you receive any notifications about some of Norton's protection features are not installed such as VPN, Safe Web, PW Manager, etc) click "don't remind me" for now. You can always turn these on later.
If you want to check your A/V to see if its working, you can go to this link and highlight and copy the EICAR test string, then bring up notepad and paste the string. Then try saving the text file to your desktop. If Norton is working correctly, it will automatically detect, delete, and pop a notification warning about the EICAR Test File.
EICAR TEST STRING