Report "I have a buffalo mini station 320 GB Ext HDD.I tried to format the hard drive but it comes up saying windows is unable to format I tried formatting from dos prompt still its the same. Even i went to Computer - manage - Disk management.I can see this drive there (298 GB). but when i tries to format it gives the same error mesage"Windows is unable to format " I am using windows 7 pro . Is there a way to sort out this problem"