Restoring Many Files from Recycle Bin

I'm stuck here - need some help.

I have an external USB drive that I keep my music files on, and I decided I wanted to clean up the hundreds of systems files left behind from Mac OS X. They're everywhere on this USB drive and I wanted to remove them, since I work with hidden system files turned ON in Windows 10.

I searched for all of these hidden files, and sent them to the Recycle Bin. There are SO MANY files that it literally chokes the best Dell Precision towers I work with when you open the Recycle Bin. I wanted to check one last time before I empty the Recycle Bin and make sure there isn't something I want to actually keep.

But for some reason I can't seem to see these files in the Recycle Bin - it says "working on it" but nothing ever changes, even after hours of waiting. There is a green progress bar across the top, but it never ends and the files never appear listed in the window below.

At this point I'm stuck and I can't empty the Recycle Bin and I can't restore these files. I suspect there are SO MANY files that the system can't list them or restore them.

Any suggestions?

Thanks.