Yes. Just a translation glitch.

In the drop down menu you choose first the oldest version of Avast! that you ran in your comp. Let’s say it was v. 6. You run aswclear, but do not reboot when it finish. Just run it again for v.7 and then for v.8 then you reboot.

That is strange. Since when you don’t run a CHKDSK, or sfc /scannow to check out integrity of you OS files. How about defrag.

If you feel you may have some malware in your sys, you can have someone in Viruses and Worms forum to check it out for you.

Follow this guide: http://forum.avast.com/index.php?topic=53253.0

Since this topic is about FREE going Pro and you just jump in, it is better to open a new topic in:

http://forum.avast.com/index.php?board=4.0

and attach ( Do not copy/paste ) logs for AdwCleaner, malwarebytes’, OTL, and aswMBR.exe, where an expert in the removal of malware will help you.