A Windows 10 or 11 computer where you can install USB Raptor.
Windows USB key guide
Pull it out.Lock your PC.
Turn an ordinary USB drive into a physical key for your Windows PC. Remove it to lock the computer, then plug it back in to unlock.
Before you begin
Three things.
This method is for Windows. Keep your normal Windows PIN or password active as your fallback.
Any ordinary pen drive. It can continue storing your regular files.
The small Windows utility that watches for your USB key.
How it works
One satisfying trick.
USB Raptor saves a tiny encrypted key file on the drive and watches for it in the background.
USB is connected
Remove the drive
PC locks
Plug in to unlock
Step-by-step guide
Make the USB key.
Get the latest USB Raptor installer from its official SourceForge project, extract the ZIP and complete the installation.
Open official downloadConnect your USB drive
Plug in the pen drive you want to use. You do not need to erase it, and it can still hold normal files after this setup.
Open USB Raptor
Launch the app and accept its first-run disclaimer. On the main screen, enter a memorable password in the Encryption section.
Create the key file
- Under Unlock file creation, open Select USB drive.
- Choose the correct drive letter for your pen drive.
- Click Create k3y file.
USB Raptor will place a tiny unlock.k3y file on the drive. Do not delete it.
Set a backup unlock method
Open Advanced configuration and enable the option that allows you to unlock using a password on USB Raptor’s lock screen.
Do this before testing. It gives you a way back in if the USB drive is lost, disconnected or not detected.
Enable USB Raptor
Return to the main screen, check Enable USB Raptor, then choose Minimize to tray. The utility will continue running in the background.
Test both unlock methods
- Remove the USB drive and wait for the lock screen.
- Reconnect it and confirm that the desktop returns.
- Remove it once more and confirm that your backup password also works.
Do not enable automatic startup until both tests work consistently.
Make it automatic
Once you are happy with the test, open Advanced configuration → General settings and enable:
- Run USB Raptor at Windows startup
- Start in system tray
- USB Raptor always starts armed
That is not the Windows Lock Screen.
USB Raptor displays its own full-screen lock overlay. That is expected. Reconnecting the USB dismisses this screen and returns you to the desktop.
Keep your normal Windows PIN or password enabled. This is a fun convenience trick—not a replacement for Windows sign-in.
Quick fixes
If it does not work.
Removing the USB does nothing
Open USB Raptor from the system tray and confirm that Enable USB Raptor is checked. The app must remain running.
Plugging the USB back in does not unlock
Confirm the unlock.k3y file is still on the selected drive. Use the backup password, reopen USB Raptor and create the key file again if necessary.
The wrong USB drive was selected
Disable USB Raptor, connect the correct drive, select its drive letter and click Create k3y file again.
It stops working after restarting Windows
Enable the three startup options in Advanced configuration, then restart once more and check that USB Raptor appears in the system tray.
I lost the USB drive
Use the backup password you enabled. Then disable USB Raptor until you have created a new key on another USB drive.
Can I do this on a Mac?
USB Raptor is Windows-only. macOS does not provide the same feature for an ordinary USB drive; Apple’s native proximity-unlock method uses an Apple Watch.
You are ready
USB in. PC open.
Leave the utility running in the tray. Pull out the drive when you step away and reconnect it when you return.