I tired the external's on 3 other computers. Not issues. I did just install the a Hallia Media Codec and MKV toolkit in to be able to display mkv files better. I ran CCleaner 8x and it cleaned some stuff but not issues. I ran Malwarebytes (it took 8hrs to do a full scan) and it had no issues. The files are 1 -2GB. Nothing big. The 20gb was just crazy.