Hangs at "System Volume Information" folder

On a fresh (new machine) Windows XP Professional (SP2) I have the following problem with Avast Home (free) v4.7:

During manual scans, Avast always seem to hang prior to/at “System Volume Information”. I disabled “system restore” but I still have the same problem. “Add Remove/Repair” does not help either. I took ownership of the folder but still it hangs. All my drives are NTFS.

If I list all the drives’ “System Volume Information” directories in exclusion list, the scan seem to proceed normally.

I have Spybot S&D, Spywareblaster, and Zone Alarm (free) installed.

Any resolution will be appreciated.

Do you have klif.sys in your system32\drivers folder?