hard drive files appearing as application.

[priyanshuu17]

my laptop which is a dell vostro works perfectly fine but when i plug in an UBS (especially my HGST hard drive) files cannot be opened ...the folders are appearing as applications and are only 140KB even if they hold files worth 200GB and the space occupied on the hard drive is still the same like before......when i click on the folders (appearing as applications ) a message appears saying that this .exe file is invalid..
so please help me out..i have some very important files in my hard drive..

 

[DataMedic]

Sounds like the result of a virus attack. This thread might have the solution to your problem: http://www.symantec.com/connect/forums/virus-issue-foldernameexe