Folder Lock

Folder Lock screenshots

Password-protect your sensitive files, folders, drives, and even USB devices
Folder Lock 7.6 : Lock Folders

Alternative downloads

Folder Guard
20.10
Lock your most sensitive files and folders and protect them from prying eyes.
Lock Folder XP
3.9.2
Helps you password-protect or hide important documents.
GiliSoft File Lock Pro
12.0
Protect your sensitive files and folders with a password-protected lock.