Hello,

this is the Temp folder of Windows.
Maybe it is enough to empty out the folder. Go on C:/Windows/Temp and delete everything in the folder, NOT THE FOLDER ITSELF.

When the Problem is still there after that do what is shown in this Topic: http://forum.avast.com/index.php?topic=53253.0

Please ATTACH your Logs, DONT COPY AND PASTE THEM.

After that Malware removers will be notified.