Scanning Local Disk (c:) for errors stuck at 76%

AVG Performance
3

Hello Jeanie.
We regret the inconvenience caused.
I'd request you to stop the scan, restart your PC and run it again.

1

I just purchased the AVG Tuneup and the Scanning Local Disk (C:) is stuck at 76%. 
What do I need to do to get this completed?

2

Hello Jeanie.
We regret the inconvenience caused.
I'd request you to stop the scan, restart your PC and run it again.