If you cannot use the official route, the only high-quality technical method involves physically reflashing the BIOS chip. This is an advanced procedure that usually requires a professional technician. Disassemble the Device
For high-quality technical recovery, you have three primary paths: the official hardware service route, a complex chip-level hardware bypass, or a specific software configuration workaround if you still have Windows access. 1. Hardware Bypass (Chip-Level)
: Insert the USB into your Surface Pro 4 and follow the boot menu to select the USB drive.
Apply the Reset: Power on the device while holding the Volume Down button. The UEFI will read the cryptographic certificate on the drive and safely clear or overwrite the administrative password. surface pro 4 bios password reset high quality
Format the USB drive to (NTFS will not boot on a Surface).
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Run the MSI package inside Windows on the target Surface Pro 4. If you cannot use the official route, the
: Because of its proximity to other components, a clip often won't fit, so the chip must be desoldered.
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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. The UEFI will read the cryptographic certificate on
Works on most devices, including Surface Pro 4. Cons: Requires a third-party tool, may not be free.
Carefully heat the adhesive around the Surface Pro 4 screen assembly to lift it off. The glass is incredibly thin and fragile; use extreme caution.