You can add a simple layer of security to your Windows PC by turning a USB flash drive into a physical key. Using a free tool called USB Raptor, your computer locks automatically when the USB drive is removed and unlocks when it’s plugged back in.
How it works
USB Raptor stores a tiny encrypted file on your flash drive and checks for it in the background. If the drive is unplugged, the system locks instantly. Plug it back in, and access is restored.
The app works with most USB drives, even those already holding files. It’s free, open source, and runs on Windows, including older versions like Windows 7.
Quick setup
- Insert a USB flash drive.
- Download and install USB Raptor.
- Open the app and agree to the terms.
- Create a backup password.
- Select your USB drive and click Create k3y file.
- Enable USB Raptor.
Once activated, removing the USB locks your PC. If the drive is lost, you can unlock the system using your backup password.
Extra options (optional)
USB Raptor also lets you:
- Set a delay before locking
- Customize the lock screen and sounds
- Turn off the screen or mute audio when locked
- Add a PIN or password for extra security
Bottom line: USB Raptor turns a spare flash drive into a simple, physical lock for your Windows PC—no extra hardware needed.
