If recovery isn't possible, it can completely clear the CMOS RAM, reverting settings to their factory default.
Many users find the ISO at UpdateStar or Softag .
It is sometimes included in larger bootable toolkits like Parted Magic (pccmoscleaner.txz package). pc cmos cleaner download
Insert the media and restart your computer. You may need to press a key (like F12 , F11 , or Esc ) to select the boot device.
Modern hardware has evolved since PC CMOS Cleaner's peak development. Keep these factors in mind: If recovery isn't possible, it can completely clear
It can decode and display many standard BIOS passwords without needing to wipe any data.
is a specialized, open-source utility designed to reset, recover, or wipe BIOS and CMOS settings, including lost "Power-On" or supervisor passwords. Unlike typical Windows optimization tools, it operates as a bootable environment, allowing you to bypass operating system restrictions and directly interact with your motherboard's firmware. Key Features of PC CMOS Cleaner Insert the media and restart your computer
Use a tool like Rufus or RMPrepUSB to burn the ISO to a USB drive.
Once the interface loads, choose between "Display Passwords" (to try and recover) or "Clear CMOS" (to reset everything). Important Limitations in 2026
Obtain the pccmoscleaner.iso file from a trusted source.