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: Turn on the PC and immediately tap the Boot Menu Key (commonly F12 , F11 , F8 , or Esc depending on the manufacturer) .

If the process was successful, your computer will stall on the initial splash screen and display one of the following hardware alerts: CMOS Checksum Error - Defaults Loaded CMOS Date/Time Not Set Press F1 to Run Setup / Press F2 to Load Default Values

How to Use a CMOS Cleaner USB Boot Drive to Reset Your PC BIOS

| Feature | Description | | :--- | :--- | | | Decrypts and displays the forgotten BIOS supervisor password. | | Password Removal | Clears the password, resetting BIOS to its default state. | | Wide Compatibility | Supports a vast range of BIOS manufacturers. | | USB Bootable | Can be written to a USB drive to run on any computer without an OS. | | Portability | Does not require installation; runs directly from the bootable media. | | User-Friendly | Designed with a simple, intuitive interface that guides the user. |

Compatible with most major BIOS manufacturers (Award, AMI, Phoenix, etc.). Verified Method: Creating a Bootable PC CMOS Cleaner USB

: The software will scan for your motherboard's CMOS chip. Choose an Action :

The following guide explains how to prepare and use the version to regain access to your system. Phase 1: Preparing the Bootable USB

While PC CMOS Cleaner 2.0 is highly effective for older systems, modern "UEFI" motherboards (common in laptops from 2020 onwards) may store passwords in non-volatile memory that software cannot easily erase. If the USB boot method fails, consider these verified alternatives: How to Clear the CMOS - Reset the BIOS & Why

💡 On most modern computers , the BIOS password is no longer stored in the traditional battery‑backed CMOS (the real‑time clock chip). Instead, it is saved in an EEPROM (Electrically Erasable Programmable Read‑Only Memory) , a more secure storage method that this tool cannot directly access. Users with very new motherboards (post‑2018–2020, depending on the manufacturer) should be aware that PC CMOS Cleaner may only reset non‑password CMOS settings , not the actual BIOS password itself.