I have had the drive for about 2 months. Everything worked fine until I put it in my brothers computer to transfer some files. When I put it back into my computer it won't recognize the drive. The green light is on and solid and I can feel the disc spinning. Under disc management however it doesn't recognize it. Its not under my computer either. I tried rebooting in safe mode with disc ejector but that didn't work as disc ejector didn't recognize there was a disc to remove. Model number: ST902504EXA101-RK