Traditionally, resetting the CMOS involves opening the computer case, locating a jumper on the motherboard, or physically removing the coin-cell battery for a few minutes. offers an alternative software-based approach: a bootable ISO image that you burn to a CD/DVD or write to a USB flash drive. Once booted, it claims to wipe CMOS memory clean without any hardware tinkering.
Introduction: What is PC CMOS Cleaner? In the world of PC maintenance and repair, few tasks are as simultaneously simple and mystifying as resetting the CMOS (Complementary Metal-Oxide-Semiconductor). The CMOS is a small battery-powered memory chip on a computer’s motherboard that stores BIOS/UEFI settings, system time, and hardware configuration. When settings become corrupted—due to overclocking failures, incorrect voltage adjustments, forgotten BIOS passwords, or boot loops—clearing the CMOS is often the first line of defense. Pc Cmos Cleaner 2.4 Iso Download
This method is – it exploits the same mechanism that a BIOS update or a failed boot uses. However, it works only if the motherboard’s I/O controller accepts these writes. On some modern UEFI motherboards (especially from 2018+ with SPI flash instead of classic CMOS), the tool may fail silently. Performance Testing – Does It Actually Work? I tested PC CMOS Cleaner 2.4 on five different systems: Introduction: What is PC CMOS Cleaner
| System | Result | |-----------------------------|------------------------------------------------------------------------| | Dell Optiplex 780 (BIOS) | ✅ Success – CMOS cleared, password removed. | | ASUS P8Z77-V (UEFI + Legacy)| ✅ Success – Settings wiped. | | HP EliteBook 840 G3 (UEFI) | ⚠️ Partial – System booted but password remained; jumper still needed.| | MSI B450 Tomahawk (UEFI) | ❌ Failed – Tool hung on “Accessing CMOS…” screen. | | Lenovo ThinkCentre M73 | ✅ Success – Full reset, time/date lost as expected. | time/date lost as expected.