Before trying out a more permanent fix, you should start with a simple restart and see if the problem persists after the next startup. In this case, you should be able to fix the issue by using the Programs and Features menu to uninstall the conflicting 3rd party AV suite / AV scanner.Īs it turns out, this issue can also occur due to a common inconsistency that might appear due to some temporary files that are interfering with the updating/uninstallation procedure.

3rd Party AV conflict – Another potential cause that might cause this error is a different 3rd party suite or security scanner that is conflicting with Norton’s installer.

In this case, you should be able to fix the issue by running the specialized Norton Remove & Reinstall tool to remove every Norton Component forcibly and reinstall it.

Corrupted installation – In certain circumstances, you might see this error message due to some type of corruption affecting the conventional uninstallation phase.

In this case, you should start with a simple system reboot and see if that resolves the issue for you.

Common inconsistency – As it turns out, this particular issue will most likely occur due to inconsistency having to do with InstallShield and the way it’s deployed by Norton to complete reinstallation and uninstall attempts.

Norton 360 remove and reinstall