Error scanning and repair

Hello Geoffrey,
I apologize, I request you to please restart your system and continuously press any button to skip the scanning process. Please feel free to get back to us for any issues with AVG. Thank you.

"Tune-up" advised a "error checking scan" so i did.Restart and commencef on my "F"disc. I went away,to do a few odd jobs,came back an hour later and saw"scanning F drive-11%".
Half hour later,it was still at 11%,Tried to stop it–no way,so i had to shut machine down on power switch.
Now.every time i switch on the scan starts and cant stop it–still stuck @  11%
Theres a message flashes on screen"To skip scan press any button within 1 second"-----but it flashes so fast,no time to read it,and when I did it failed twice ,before IHELD keypress down.
So got rid of…PHEW!!
But now dare not try and run this program again.
What AVG think? Anyone else done this?
Otherwise very pleased with "Tune-Up".

Hello Geoffrey,
I apologize, I request you to please restart your system and continuously press any button to skip the scanning process. Please feel free to get back to us for any issues with AVG. Thank you.