Resetting a BIOS/UEFI password on a Surface Pro 4 is significantly more difficult than on standard laptops. Microsoft does not provide a software-based "reset" for this password; if lost, the device is considered permanently locked from firmware changes by official standards.
Here is the definitive, high-quality guide to resetting the Surface Pro 4 BIOS password—from the simplest attempts to advanced hardware methods. surface pro 4 bios password reset high quality
The Surface Pro 4 was designed with enterprise security in mind. Microsoft deliberately made the BIOS password difficult to reset to prevent theft. (there isn't one), and no backdoor password exists. Resetting a BIOS/UEFI password on a Surface Pro
However, depending on your goal, you have a few options ranging from simple bypasses to advanced hardware fixes. 1. Try Common "Master" Passwords The Surface Pro 4 was designed with enterprise
Flashing the wrong BIOS file can "brick" the device permanently. If you overwrite the Windows Product Key in the BIOS, you may lose the digital license for Windows.