Admins can often push a "reset package" to the device to clear UEFI settings.
| Step | Action | Key Tool / Action | | :--- | :--- | :--- | | 1 | | Create self-signed cert via PowerShell (pwd: 12345678 ) | | 2 | Package | Use SurfaceUEFI Configurator to create config MSI (leave password field blank ) | | 3 | Deploy | Install MSI on locked Surface Pro 4 | | 4 | Reboot/Bypass | Enter random characters to bypass red box prompt | | 5 | Reset | Run reset package from Configurator (using device serial) to fully clear password | surface pro 4 bios password reset high quality
Unplug the power charger, Surface Dock, Type Cover, MicroSD cards, and any external USB drives. Admins can often push a "reset package" to
If you have access to the management console, deploy a "Surface UEFI Manager" package configured to reset the supervisor password to blank. Method 3: Hardware EEPROM Flashing (Advanced Users Only) Method 3: Hardware EEPROM Flashing (Advanced Users Only)
Trying to guess it will only lock you out of your OS as well.
Reattach the display and boot into the UEFI menu without a password. Myths to Avoid: What Does Not Work
Locking yourself out of the Microsoft Surface Pro 4 UEFI (Unified Extensible Firmware Interface), commonly referred to as the BIOS, can completely stall your productivity. A BIOS password is a critical security layer that prevents unauthorized changes to your hardware settings, boot order, and security features like TPM.