I'm at my wit's end with this problem. It seems my computer (Windows 7) is caught in an endless series of dischecks on startup. When I finally get it to start (by canceling the diskcheck), I get the error message from Norton (8506, 422). I downloaded the tool that uninstalls and re-installs the latest version, but when I started my computer this morning I got the error message once more, and was prompted to do the uninstall/re-install. I did it again, but am afraid that it will just happen all over again.
I don't know if the erroneous diskchecks are related to the problem with Norton or what (I say 'erroneous' because whenever I read the diagnostic report of the check, it says there were no errors found).
Does anybody have any suggestions on what to do about this? I'm completely at a loss...
Normally if running the remove and reinstall Tool does not work, we recommend uninstalling via Programs & Features, running the Norton Removal Tool and then installing a fresh copy of your Norton product.