Firewall is silently blocking the bluetooth file transfer

Hello,

I try to setup Avast Premier to let me send files through bluetooth from my mobile phone to a PC. Both have Avast, the PC is a Windows 8.1 Update 1 machine, and I could transfer files when I disable Avast on the Windows machine. I could not find a setting for the bluetooth at all. I find Avast very difficult to find where to setup things also.

Any ideas?

Thanks,
Mike