Scan Stops - Waits for me?

New to Avast but want to do a full scan. I have tried twice now with same results. I set scan to Standard, no archive files. I set up before going to bed and this morning it says it scanned 57,xxx files, 13%, yesterday it was 130,xxx files and I forget the percent. I know there are over 300,000 files on C:. The “Last Scanned Date” shows “Not Scanned Yet”. How Can I get it to run completely?
When I check the Chest it shows infected AdWare files and not to worry. There is no option to continue.

What does happen when the scan finish? Does if just stall? Where, at which file (name and path)?
To get the Last Scan field updated, full HDD scan needs to be made. Please see here: http://forum.avast.com/index.php?topic=11290