Surface Pro 4 Bios Password Reset High Quality ~repack~ Jun 2026
Also, try leaving the password field completely blank and pressing . Some BIOS locks are "shadow locks" where the password was never actually set, but the flag is corrupted.
When attempting to reset the BIOS password on your Surface Pro 4, be cautious and consider the following:
If you are a consumer who bought the device secondhand or no longer have institutional IT support, the only true way to clear a forgotten Surface Pro 4 BIOS password is by physically reprogramming the BIOS chip.
Forgetting a BIOS or UEFI (Unified Extensible Firmware Interface) password on a Microsoft Surface Pro 4 can feel like a disaster. Unlike traditional laptops where removing a CMOS battery is straightforward, the Surface Pro 4 is designed with security in mind, making password recovery difficult. A lost UEFI password restricts access to essential hardware configurations, secure boot settings, and USB booting options. surface pro 4 bios password reset high quality
| Factor | Rating | |--------|--------| | | 9/10 – Almost always works if hardware accessible | | Permanence | 10/10 – Fully removes, not just bypass | | Skill needed | 6/10 – Not beginner, but doable with guides | | Risk of bricking | 3/10 (low if you backup original dump) | | Cost | $15–25 for programmer kit | | Time | 1–2 hours first attempt |
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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. Also, try leaving the password field completely blank
The most important lesson is a preventative one: If you set a password, store it securely in a password manager or written down. Better yet, consider carefully whether you truly need to set a UEFI password at all—the security may not be worth the risk of losing your device.
Method 2: Hardware Reset via BIOS Chip Flashing (High-Level Technical)
Because Microsoft stores this password in a non-volatile, hardware-encrypted chip on the motherboard, cutting power to the battery will not reset it. Forgetting a BIOS or UEFI (Unified Extensible Firmware
The clean, unencrypted firmware binary is written back to the EEPROM chip.
Press and hold the Power button for a full 30 seconds, then release it.
Attach the programmer clip and read the current chip data to create a backup file.
If your primary goal is simply to wipe the device and you can still boot into Windows (but just can't change BIOS settings), you can perform a factory reset to regain control of the OS.
