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Kudos0

Error message 8506.421 seems unfixable

Using Windows 7 on a Toshiba laptop. Ran Norton Power Tool and Norton Eraser.  Reinstalled Norton Security after running Norton Power Tool and restarting. Continue to get Norton Security message that Error 8506.421 is a problem and Norton and their Support Web site have not been helpful.

Replies

Kudos0

Re: Error message 8506.421 seems unfixable

davisbw1:

Using Windows 7 on a Toshiba laptop. Ran Norton Power Tool and Norton Eraser.

Norton Power Eraser is one tool.  Perhaps you ran the NRT or NRnR Tool

Kudos0

Re: Error message 8506.421 seems unfixable

Hello

I would try the Norton remove and reinstall Tool. Your version of the program may have got corrupted and needs to be replaced.        

www.Norton.com/nrnr

Success always occurs in private and failure in full view. Windows 10 Pro 64 bit Norton Core Security Plus 22.17.3.50 Core Firmware 282 I E 11 Chrome latest version.
Kudos0

Re: Error message 8506.421 seems unfixable

If reinstall does not help, try clearing all Windows temp files. Then find the Windows/Prefetch folder and delete all the files in that folder. These files help Windows load programs quickly. They will be recreated when Windows is restarted.


Run LiveUpdate manually a few times, rebooting as necessary, until no updates are available.

Restart the computer once more. The first restarts may take a little longer as the Prefetch files are recreated.

Things happen. Export/Backup your Norton Password Manager data.

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