Hard Drive keeps disappearing...

[Jed Shields]

Hello all,

I've got a 3Tb drive that keeps disappearing from My Computer. I can find it using Disk Management and it's showing as 2048GB GPT Protective Partition and 746.49GB Unallocated. If I switch it to offline and then back online then it shows up the full 2794GB NTFS. It seems to do those almost daily... I've tried reformatting (full and quick) but no luck.

Any ideas?

Cheers,

Jed

 

[Jed Shields]

I've done the Error Checking through Windows (10) and it's fine. Can you recommend any other software checker? Ideally that's free

 

[Jed Shields]

I've run HDDScan SMART and showing UltraDMA CRC Errors. Not sure what this is. Everything else is green. I'm going to run some other tests