WD passport 1TB detecting only some files of stored data after win 8.1 update

 I recently updated my system to win 8.1 . when i connect my passport ext hard disk ,i am only able to see only some files. when i check properties the used space  shows same as earlier , but the files are not seen . say i had 400 GB of stored data earlier , i am only able to acess 50 GB. remaining files cannot be seen, but in file properties it still shows 400 GB  as used . pls help to retrieve my old files . i tried updating driver and all but no difference

Try enabling show hidden files.

Joe

No Joe … tried that too… not working