Gthu11.7

Not possible unless you develop software to playback encrypted files from the flashdrive, which is the equivalent of using VeraCrypt (or another similar method) to encrypt the contents of the drive you don't want accessed. DVD copy protection worked exactly like this, as the DVDCSS protection was simply a method of encrypting the files on disk with a key that would allow decrypting via "trusted" software. (Although that didn't work out well since some people made libdvdcss to get around this...)

Well fuck. family wanted to see a movie I had and I feel like my brother would take the movie and give it to all his friends. A movie that I payed for. Oh well. Hope something like that would be integrated into windows soon

Thanks though!

. . . . you can't do this. By nature, the purpose of a USB stick is to allow file storage, including read + write access. Enabling read-only mode makes it so others can't write to the drive (although that can easily be disabled if they boot into Linux and low-level format the drive) but there's no way to easily prevent others from reading the contents of the drive, aside from encrypting it. What exactly is the person you're loaning it to needing to do with the drive?

Remove the files off the USB before giving it to them?