External Hard drive files wont show up

Hello all,

Recently, there was a virus on my dell studio xps 7100 that my 2.27TB external hard drive was plugged into. I got rid of the virus (I think) and plugged my Hard Drive into my other desktop. It says that there are 1.63TB/2.27TB of space remaining, but when I double click on it, no files are shown. I know they are not gone because then I would have extra space.

Here are the methods I have tried:

Safely removing the Hard drive and plugging it in again (Did this with my other computer too)

Properties-> Tools -> Check Now (Error checking my External Hard Drive)

Restarting computer

I have also tried going into the command prompt and used the dir/ah method, but only the FOLDERS are shown. I organized my hard drive with 7 folders (movies, machinima, anime, etc), but none of the actual videos are there. It's because I don't fully understand how to use this method, so if anybody can elaborate on this it or introduce another solution entirely would be much appreciated.

Cheers, Harry