Hey there, quadcomputers!
I'm sorry to see you struggling with the WD Elements external drive.
🙁
I'd follow Phillip Corcoran's advice and test the drive using Data LifeGuard Diagnostics utility.
I'd also recommend you to try the hard drive on another computer, see if it will get recognized properly there.
If you have a spare USB cable to swap, I would try with that one as well.
Check these links for suggestions on how to resolve the issue:
Error: 'Disk is write protected' solution:
http://products.wdc.com/support/kb.ashx?id=sWdhHk
How to remove a write protection on your drive:
http://www.tomshardware.co.uk/forum/272402-32-flash-drive
Hope these help!

SuperSoph_WD