Why is this happening?  Is it an external threat?  Something seems to be trying to get to an external drive with previous backups. 
If it is an internal issue, can I stop it?
Blocked unauthorised process (C:\Program Files\Bitdefender\Bitdefender Security\bdservicehost.exe) accessing file (\Device\HarddiskVolume9\BACKUPS e7440\C554E16C14B5CEF2-00-00.mrimg)