Today, Norton was crashing Windows 11 every time I ran the Full System Scan.
Edition Windows 11 Pro
Installed on 11/3/2021
OS build 22000.918
Experience Windows Feature Experience Pack 1000.22000.918.0
I would open Norton 360 and click on Security, Scans, Full System Scan radio button and GO.
A full minute into the scan I'd see the Blue Screen of Death. Time and again, crash, crash.
Sometimes Windows would restart and sometimes it froze part way through its reporting process.
Windows Stop Code would change almost every time. Service errors, Watchdog errors, etc.
To fix it, I tried to delete and then freshly install Norton360 v18.104.22.168, which did not help.
Unplugged a USB DVD drive and USB Hub. That didn't help, either.
I setup a video and started the full system scan while recording.
When Windows crashed, in the video, I noted the file path that Norton360 was scanning at that time.
It was a Mozilla folder in one users Microsoft App Data that was being scanned at the crash point.
I deleted and performed a clean reinstall of Mozilla Firefox 104.0.2 (64-bit). That did the trick.
Windows 11 stopped crashing during Norton Full System Scans.
Firefox asks to save your settings etc to reinstall, I chose not to save old data, configurations, etc.