Removing the CR2032 coin battery for several minutes to drain the chip's power.
USB drives can be used on laptops, desktops, and ultra-books. How to Create a PC CMOS Cleaner 2.0 USB Boot Drive
Once your USB drive is ready, move over to the locked target computer. Step 1: Change Boot Order Turn off the locked computer completely. Plug in your newly created PC CMOS Cleaner USB drive.
Because PC CMOS Cleaner 2.0 is an older utility, configuring the bootable USB correctly is crucial for it to launch successfully. Follow these steps using Rufus: Step 1: Format and Prepare the USB Drive
Follow these steps to burn the PC CMOS Cleaner 2.0 ISO onto your flash drive using Rufus, the industry standard for creating bootable media. Step 1: Initialize the Software pc cmos cleaner 2.0 usb boot
This report details the utility "PC CMOS Cleaner 2.0," a legacy software tool designed to reset BIOS passwords. The specific focus is on deploying this tool via USB bootable media, which is the modern standard for systems that no longer include floppy drives (for which the tool was originally designed). The report covers functionality, deployment methods, and critical limitations regarding modern hardware security.
Losing access to a computer because of a forgotten BIOS or CMOS password can completely stall your workflow. Whether you bought a refurbished machine with locked administrative rights or simply forgot a password you set years ago, a hardware-level lock can feel like a dead end.
Modern computers utilize and store critical configurations, including administrator and boot passwords, inside non-volatile random-access memory ( NVRAM ) or EEPROM chips. Because NVRAM does not rely on a battery, simply pulling the CR2032 battery out of a modern motherboard will often fail to clear a supervisor password. How PC CMOS Cleaner 2.0 Works
While PC CMOS Cleaner 2.0 is a highly effective tool, modern PC architectures present unique challenges. If you encounter issues, review the technical workarounds below. 1. Modern UEFI / Secure Boot Incompatibility Removing the CR2032 coin battery for several minutes
Insert your USB flash drive into an open port on your working computer. Launch .
A single thumb drive can be used across multiple desktop and laptop computers.
A menu will appear displaying available boot devices. Use your keyboard's arrow keys to highlight your USB flash drive (it may be labeled with the brand name, or as "USB HDD"). Press . The computer will bypass its internal hard drive and load the PC CMOS Cleaner Linux environment. How to Use PC CMOS Cleaner 2.0 to Reset BIOS
If you find that the does not resolve your issue, it might be necessary to physically clear the CMOS by removing the motherboard battery or using the physical jumper pins . How To CORRECTLY Clear Your CMOS Step 1: Change Boot Order Turn off the
Select this to remove the user/admin password.
It can completely wipe supervisor, user, and hard drive passwords stored in the CMOS chip.
Because PC CMOS Cleaner 2.0 is distributed as an .iso disk image, you cannot simply copy and paste the file onto a flash drive. It must be flashed properly to become bootable. Step 1: Format the USB Drive Insert your USB drive into a working computer.
Re-enable RAM overclocking profiles to restore your system's optimal performance. Conclusion
If your primary OS drive is formatted with a GPT partition table, ensure that UEFI Boot is enabled. If it was installed under an older MBR system, toggle Legacy Support / CSM back on.
The utility will automatically scan your motherboard architecture and display details regarding the detected BIOS vendor (e.g., AMI, Award). Click Next .