Missing Hard drive after installing Win 10

Hi,
So my buddy installed Windows 10 and now one of his hard drives simply will not show up.

It's listed in device manager but not in explorer. He had Vista installed and made a clean install of 10.

Any clues how he should go about getting the drive to show up without having to format it or do something that will lose the data on it as he backed up his whole computer to that drive before installing W10 on his primary HDD.

Thanks

Traijan said:

Hi,
So my buddy installed Windows 10 and now one of his hard drives simply will not show up.

It's listed in device manager but not in explorer. He had Vista installed and made a clean install of 10.

Any clues how he should go about getting the drive to show up without having to format it or do something that will lose the data on it as he backed up his whole computer to that drive before installing W10 on his primary HDD.

Thanks

Try a restart first.

Yup, he's restarted a couple times now

Traijan said:

Yup, he's restarted a couple times now

Does it show up in Disk Management?

Yes it's showing up in disk management

Traijan said:

Yes it's showing up in disk management

Make sure you've got all updates run with none pending and reboot again.

Okay, all updates done and rebooted. Still shows up in disk management and in device manager but not anywhere else that would make it usable.

Traijan said:

Okay, all updates done and rebooted. Still shows up in disk management and in device manager but not anywhere else that would make it usable.

Can you open the drive from within Disk Management?
Does the drive have a letter assigned to it?

No, in disk management it does not have a letter assigned to the drive.

He can right click it and see the properties that show used space and space available.

Traijan said:

No, in disk management it does not have a letter assigned to the drive.

He can right click it and see the properties that show used space and space available.

Ah! Give it a letter then it'll show up in Explorer!