I had the same problems probably 30-35 years ago I think at the time work under Central Point, so I banned forever, I like when I decide to uninstall a program is forever because doesn't work for me. i haven't read the windows terms/agreement but this is a betray of customer trust, IMO. Yeah, same thing here with McAfee in my newly acquired laptop! i uninstalled it through windows add/uninstall app and everything went just fine but when i went and checked the programfiles, there it was, the full folder windows would not allow me to delete the entire folder so i had to delete almost every file content individually. I have had a long and successful history with Norton, but it seems that they are now being too 'helpful', to take the most favourable interpretation of recent policies. I declined, of course, and found the Norton Download Manager had appeared in my Startup list. The next day, however, I was presented with a Norton dialogue box that gave the option to 'Install the latest version'. Selecting the 'Remove Only' option, the process completed quite quickly and I then initiated Windows Security and thought all was well. Wishing to rely on Windows Security, I decided to uninstall Norton before my subscription came up for renewal, so I downloaded the Norton Remove and Reinstall tool.

Norton 360 uninstall tool