Hi David
Have just tried this and so far so good. Norton is a real entwiner isn't it. So far it hasn't appeared and things are still working OK. I did make a back-up just incase though.
22. (Optional) If NAV is the only Symantec product installed on your computer:
1. Click Start, and then click Run.
2. Type regedt32 and then click OK. The Registry Editor opens. (This is a different version of the Registry Editor than you used in the previous steps.)
3. Click the Window menu, and then click HKEY_LOCAL_MACHINE on Local Machine
4. Navigate to the following subkey. (You need to double-click each key to open it):
HKEY_LOCAL_MACHINE\System\Current ControlSet\Control\VirtualDeviceDrivers
5. In the right pane, double-click VDD. The Multi-String Editor opens.
6. In the Data box, select the path which includes Symantec, press Delete, and then click OK.
7. Exit the Registry Editor.
23. (Optional) Most NAV entries are now removed from the registry, although some traces of it still remain. These traces have little impact on how your computer operates, and it is not necessary to remove them. If you feel confident about editing the registry, and want to remove as many traces as possible, then continue with the following steps:
1. Click the Edit menu, and then click Find.
2. Search for NAVNT, and then delete all entries.
3. If NAV is the only Symantec product on the system, then you may also search for Symantec and Norton, and then delete all the entries. If there are other Symantec products on the system, then be careful to delete only those items related to Norton AntiVirus for Windows NT, or the other Symantec products may cease to work.