Hidden Files in Sandisk (32GB Cruzer Blade)

Good Day! I have a problem on unhiding my files inside my usb which my classmate inserted my usb in a full of virus laptop. I already tried the command prompt but still not effect on my usb.

Is there any way that I can still recover my files which is a 7GB plus pictures?

Thanks and more power!

If your files are inside a SecureAccess vault the only way to save them is to find a pc that has a good security system, insert the blade, run the pc’s security app(s) on the blade, then run SecureAccess, copy each of your files to the pc’s hard drive, then eject the blade.  What you do with the blade after that is up to you.