Need help on getting a external HDD to recognize on PC

[Need HDD Help]

I actually sold a external hardrive to someone & they can not get the drive to recognize on their PC

I used CCleaner to wipe the drive & tested it with 'Hard Disk Sentinel' before selling it & it checked out fine before I shipped it out.
Here is the test results of 'HD Sentinel' gave the HDD before I sent it

The buyer is saying his PC isn't recognizing the drive under My Computers.
He claims to have tried, in Device manager, on updating the drivers & selected to uninstall & reinstall it, but say's it didn't do anything.

Also in the Device manager, he tried to make the Drive active or to select/change drive paths/letters, but those options are greyed out.

This is what it looks like in his Device & Printers page

right clicking & going into properties goes to this

When he right clicks on 'My Computer' & selects 'Manage',this is what it looks like

This is what it looks like when he opens Device Manager

Why won't the drive appear under his My Computer, even though it shows up under Device Manager & under Devices & Printers?

I been searching the past week on External Hard Drives not being recognized by PCs & every solution I told him & he has tried hasn't worked.

 

[Nec_V20]

Of course it won't recognise it, he has to repartition the 250GB drive before he can format it again.

He has to go into disk managment (found under "administrative tools") and create a partition.