Whenever I try to run Liveupdate on Norton 360 Deluxe it fails to complete and gives an error 8921, 253. I've run the Norton Autofix which confirms that I have Internnet access and then points me to the relevant Support page. I've followed to process on this page to the letter only to end up without a solution and back at square 1. Finally I've run Remove and Reinstall and still have the same problem. Can anyone help me resolve this problem. I'm running Windows 10 Home (last updated 23/6/20) 64 bit.
[Edit: Clarified the subject]