How to Clear CMOS to Reset BIOS Settings in Systems ... - Intel

It supports a wide range of BIOS manufacturers including Award, AMI, Phoenix, and others.

Insert the media and restart your computer. You may need to press a key (like F12 , F11 , or Esc ) to select the boot device.

It can decode and display many standard BIOS passwords without needing to wipe any data.

Obtain the pccmoscleaner.iso file from a trusted source.

If you cannot find a working copy of PC CMOS Cleaner, KillCmos or CmosPwd are verified alternatives that perform similar tasks. How to Use PC CMOS Cleaner

Use a tool like Rufus or RMPrepUSB to burn the ISO to a USB drive.