Hi Shadow,
This is Mike from the Norton Authorized Support Team responding to your post.
The proper way to uninstall Norton Internet Security is to use the removal tool, and to run it 2-3 times, making sure that you reboot after it completes running each time. If you can please try following directions below, it should resolve your problem and allow you to uninstall and then reinstall Norton Internet Security.
1. Click on the following link to download the Norton Removal Tool:
Norton Removal Tool and Instructions
2. After you run the tool, please restart your computer. Then log in to Windows again and run the removal tool again. Restart your computer after it is finished running the second time as well.
3. Make sure that your internet connection is working properly, and then reinstall Norton 360. Towards the end of the installation process, the LiveUpdate feature will automatically run and download and install updates to both the program files and definition files.
4. When the installation is complete, please manually run LiveUpdate to make sure that all of the updates are downloaded and applied. To do so, Click Start-> All Programs->Norton Internet Security->LiveUpdate. LiveUpdate will run again and download and install any additional updates that are available. When this is complete, close the LiveUpdate window by clicking the "Finish" button.
By default, as long as you are logged in to Windows and connected to the Internet, LiveUpdate will run in the background a few times a day and automatically download and install any future updates.
Please try this process and let me know if it resolves your problem.
Thanks,
Mike
Michael York
Norton Authorized Support Team
Symantec Corporation