Thank you for your response ! 
The thing is that i cannot use WD ulitities because when my drive is locked and i’m trying to unlock it using WD Utilities it says that my password is incorrect but when i successfully unlocked the disk drive using windows explorer, the hard disk cannot be detected by WD Utilities.
Is that the only way for my HDD ? Is there any other method to try recover some files from it ? I really needed some files on my HDD
