If avg is picking up false alarms you can report them to avg and they will scan and if clean update there detection to ignore them in future scans
To solve the problem, please send us this file for analysis directly from the AVG program this way:
Open AVG User Interface.
Choose the "Virus Vault" option from the "History" menu.
Select the false positive file (one click) and click on the "Send to analysis" button.
Fill in your e-mail address
Confirm the dialog