My old external's USB port broke off, so I connected it using my computer's SATA. I bought a new external HDD. I copied all my stuff from my old external. My computer arbitrarily shut down (it does that). I reformatted my new external as the partition was screwed. It now appears write-protected on my computer, but is fine on others.
I think it's on my computer side. I have had it with my old external, but the problem just went away. I don't think I'll happen again though.
Does anybody know how fix this?