Norton doesn't install after starting Download Manager
1. Download the Norton Remove and Reinstall tool. Save the file to the Windows desktop. ...
2. To open the Downloads window in your browser, press the Ctrl + J key.
3. Double-click the NRnR icon.
4. Read the license agreement, and click Agree.
5. Click Advanced Options.
6. Click Remove Only.
7. Click Remove.
8. Click Restart Now. Know more
Visit: Norton customer service number | Norton Customer support number