How do I disable password protection on my U3 smart drive? STEP 1 - Disabling password protection 1. Insert the U3 flash drive to the PC's USB port. 2. Enter your password in the Password box, then click Log In 3. Click the U3 icon on the system tray. 4. On the Launchpad menu, click Disable Security. 5. Enter the current password again to confirm, then click OK.