Comment réinitialiser le mot de passe du BIOS sur un ordinateur portable. 6 façons

At 0:34, the video explains the first method: when the BIOS password appears during startup and repeated wrong entries trigger a “System disabled” message, you can generate a master password on a website to unlock it. At 1:51, it suggests power‑cycling the laptop by removing the battery and holding the power button for 10–20 seconds, which may help if the motherboard battery is drained. At 2:14, it describes a more effective approach: disconnecting the battery from the motherboard for a few seconds and then reinstalling it, sometimes requiring the laptop to be partially disassembled. At 2:39, it notes that in some cases you can reset the BIOS, but you need the current password to do so. At 3:47, it introduces the CmosPwd program as a way to reset the BIOS password when you have access to the BIOS settings but not the operating system. At 7:46, it warns about the risks of flashing the BIOS firmware: downloading the correct firmware from the manufacturer’s site, running the flash, and the potential for hardware failures if the wrong version is used. The video concludes that while firmware flashing may not always reset the password, it remains an option for some users.