PC is a HP Pavilion running Windows 10 Professional. Nothing special in configuration.
I have two external drives, both with BitLocker. Both external drives contain some adult videos, downloaded from reputable sites. No issues until about a month ago. The PC started acting like it was possessed. Program wouldn't open or close when the external drive was plugged in. I scanned the PC with Norton and no issues. Without an external drive plugged in, the PC is fine. The other issues with the external drive is that some of the videos I downloaded have been replaced by videos that are very short and obviously ads for pay sites.
Can the external drives be compromised by a virus or malware? The files are straight MP4's.
Thanks in advance.