Have a trail Tune-up (yesterday) tried it this morning 0904 and now at 12.45

Hello Bill,
We are sorry that AVG PC tune up user interface is not responding in your PC and unable to work with it. Please try to repair AVG PC tune up using the below instructions and check if it works:
1. Go to Start -> Control Panel.
2. Open (Programs) -> Programs and Features, or Add or Remove Programs.
3. Select AVG PC tune up in the list of programs.
4. Click the Change or Change/Remove button.
5. Select Repair.
Please update the status of AVG PC tune up user interface after following above steps, so that we can check and assist you further.
Thank you.

What does it do, besides the black screen and the little circle turning for the last 3.5 hours. The rest of the computer works fine.

Hello Bill,
We are sorry that AVG PC tune up user interface is not responding in your PC and unable to work with it. Please try to repair AVG PC tune up using the below instructions and check if it works:
1. Go to Start -> Control Panel.
2. Open (Programs) -> Programs and Features, or Add or Remove Programs.
3. Select AVG PC tune up in the list of programs.
4. Click the Change or Change/Remove button.
5. Select Repair.
Please update the status of AVG PC tune up user interface after following above steps, so that we can check and assist you further.
Thank you.