External HDD won't show up in Explorer, but shows in device manager

Right click on My Computer and select Manage.

Select Disk Management

Is the drive there?

Do you need to initialize it? (right click on the picture of the drive)

Does it need a drive letter? (right click and select Assign Drive Letter or Path)

Does it require partitioning? (if its listed as unallocated right click on Unallocated and select New Simple Volume)

Does it require formatting? (right click on the drive in disk management and select Format)

Have looked all over the place for a solution.

This was it. Tx
Warren

Why do you have to retrieve the data? what has happened to your drive? You should offer more details, please.