I recently upgraded the HDD in my laptop for more storage. The drive was working and I was transferring old files onto it and let it for a couple hours. When I came back to turn it on the drive was no longer shown in windows. I checked the BIOS and the computer shows that the drive is still there but nothing at all is shown in the windows folder or disk management. I am a bit worried that the drive actually broke because it only displayed the name while the other drive showed the name and storage size. But since the BIOS recognizes it could I still save the drive?