2.5 hdd wont show on desktop pc

[danielsuperchef]

Hi,
i thought i would help my friend as i am a bit more knowledgable on pc than him, his hdd is corrupt in his lappie and he got a new one with a 2.5 external USB case, however when I plug new hdd into usb port on my desktop it doesnt show up in 'my computer' or anywhere.
Am I missing something? I havent tried it in his laptop yet but I wanted to check in case I need to send it back.
Should i be doing something to initialise it the drive?

Thanks

[kellys_eye]

Start - settings - control panel - administrative tools - computer management

Expand 'storage' and go to 'disk management'

Should show up there and it allows you to initialise it if required.

[danielsuperchef]

Thanks kelly
I can find it there, but dont understand how to initialise to make it appear in my drive list so i can add stuff to it etc?
its listed as unallocated at the moment:

[danielsuperchef]

Ok I think ive solved it, i need to format it by right click, new simple volume, assign drive letter etc..

[kellys_eye]

You got it!