Hi, i just bought a new 8T drive which apparently was meant to be internal, but my son helped me make it external by putting it in a housing. It seems to be working fine; however, my issue is that it keeps telling me that some files cannot be transferred to the new drive because the file can't be read or written. However, I can open those files in photoshop just fine. Please help. I am desperately trying to clean up my computer.