My hdd 2tb driver is not working

at first it worked Excellently, but now it doesn’t work at all ??

i don’t now what happend but every time i try to open it shows that massage

          " f:\ is not accessible, The parameter is incorrect  "

and i did then no thing happend, and in the disk management the driver status is Excellent, and i tried to use the  " data lifeguard " then this massage shows " quick test on drive 3 did not complete, status code = 07 ( failed read test element), failure checkpoint = 150 , ( unknown test )   smart self-test did not complete on driver 3 …

my hdd model : WD Ext HDD 1021 

Hello Omar, see if the following link helps.

http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/d-is-not-accessible-parameter-is-incorrect/5d528cf2-c51c-431d-97e0-a54cba0c838f