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Device Manager keeps refreshing with Norton Installed.
Since early August, Device Manager keeps refreshing. It makes playing one of my games impossible. I already followed Microsoft's advice to narrow down hardware causes. Unplugging LAN cable stops the refreshing but leaves me without internet. So I went back to a Restore Point in Windows. The Refreshing stopped, I had internet, but Norton was the only thing that wouldn't start. Reinstalling Norton caused Device Manager to start refreshing again. Turning off smart firewall or antivirus does not stop Device Manager from refreshing either.