Locked hard drive cant access

ok so i have a wd external had drive has been working great for a bit, i recently reset my laptop bk to factory settings and the drive worked for a short while, it now when asking for password says its locked and to run the unlock function, when i run this it says i need to locate the unlock.exe from cd, as not havin cd and most things ive seen i believe u run it from the drive its self, now heres the funny thing if i plug this into my xp pc the password protection comes up and i put password in and all is good, but when i plug it into my vista laptop it does not and says it needs unlocking.

   any help would be great.

You can try updating the software on the Windows XP computer.

See the following article for more information:

Password unlock window doesn’t pop-up when the locked WD SmartWare drive is connected to a Windows PC

http://wdc.custhelp.com/app/answers/detail/a_id/3538