First Full Scan after updating today

Hello Helen,
We regret for the inconvenience caused. Since you mentioned that you are experiencing issue with AVG scanning, we would request you to repair http://support.avg.com/SupportArticleView?urlname=How-to-repair-AVG  the AVG Program and check whether you are able to resolve the issue.
If the issue persist, we would request you to send the screenshot of your AVG scanning interface to assist further.
Thank you.

This has been running for over 2 hours now and has been showing 9% completed for more than an hour - is this usual? I am wondering if it is stuck?

Hello Helen,
We regret for the inconvenience caused. Since you mentioned that you are experiencing issue with AVG scanning, we would request you to repair http://support.avg.com/SupportArticleView?urlname=How-to-repair-AVG  the AVG Program and check whether you are able to resolve the issue.
If the issue persist, we would request you to send the screenshot of your AVG scanning interface to assist further.
Thank you.