Would like to secure only a handful of files and folders by encrypting them on a flash drive containing gigs of data.
1) Is a program like veracrypt overkill for my needs?
2) Would 7-zip be sufficient? Not sure if this is supposed to happen- I encrypted a file with 7-zip but the original unencrypted file still remained alongside the encrypted one. Is that to be expected? do I just delete or shred it?