RESTORE LOST FILES FROM USB?????!!!!

I have scanned my computer on mode which is “without damaging your files”. However, all of my file in USB is lost. I also looked up in Quarantine but there 's no files from my usb there. How can I restore my files. Please help!!!

You can try and see if this is able to recover them > http://www.cgsecurity.org/wiki/TestDisk
If not you have two other options.

1] Hire a data recovery recovery service like > https://www.krollontrack.com/services/data-recovery/

2] Consider the files lost.

But why don’t you have a backup ?