Here’s how to add Sync as an exception in Avast Free Antivirus:
- Click on Settings from the bottom left corner of the Avast console
- From the General tab, scroll down to Exclusions
- On the File path, click Browse and navigate to C:\Users\IEUser\AppData\Local\Programs\Sync and click OK
Note: Replace IEUser with your actual Windows username Click here if you can't find the AppData folder.