The BIOS (Basic Input/Output System) password, also known as the CMOS password, is a security feature that protects the laptop's BIOS settings from unauthorized access. It is stored in a chip on the motherboard and can be reset using various methods.
: If software methods fail, a technician can physically desolder the BIOS chip and use a programmer (like the TL866II Plus) to write a clean BIOS file without a password. This is high-risk and requires specialized soldering skills. Reset BIOS password on HP ProBook 450 G2
For ProBook 450 G2, the code is 8 digits (e.g., 85921407 ). These services charge $10–20 and provide a master password that works instantly.