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I tested PC CMOS Cleaner 2.4 on five different systems:

The CMOS (Complementary Metal-Oxide-Semiconductor) is a small memory chip on your motherboard that stores BIOS settings, including system time, boot order, and passwords. PC CMOS Cleaner 2.4 works by:

Always document your ownership. If you bought a used PC with a BIOS lock, contact the seller for a refund before attempting a reset.