This is overkill and it much easier said than done, but then again, if you are willing to decompile the binary from the BIOS you might as well get it commercially done for you or just get another board. In the worst case scenario, you could learn how to reverse engineer the BIOS chip and inject code to reset it for you, if you are not able to do so manually. It may not (and frankly, shouldn't) be possible any more to do so by simply removing the CMOS battery, but neverless its something to try anyhow. To answer your question, you should research how to clear the password on the specific model you have - that is, of course, provided you own the machine or have full permission to do so by the owner. You may have to decrypt or re-flash the security EEPROM or another chip to reset the password, as you might have seen in older style Thinkpads for example. This is a huge convenience for businesses, who do not disclose BIOS passwords to employees, yet can still remotely upgrade them. This also means that you can upgrade or reinstall the BIOS and keep your password and settings on there. Quite often, the password will be set (either in plaintext or hashed) in a separate EEPROM in the computer, so that the ROM for the BIOS has no effect on it. !Bios by eleventh alliance and invalidating the CMOS checksum manuallyĦ Ways To Reset or Remove BIOS Password For Acer, Dell, HP, Toshiba, Asus and Apple Laptop How To Remove, Clear, Reveal, Unlock or Reset BIOS Security Passwordįor useful utilities: PC CMOS Cleaner, CmosPwd by CGSecurity, This should work, but if it doesn't, see the article At your discretion you may donate to that website. Hit Enter for all prompts for a new password (or enter a password).It may ask for the old password, so enter the code from step 4.

Which might be named 'Set Supervisor Password'. In the BIOS go into the tab that might be named 'Security', and click an entry.Enter that code in the BIOS and hit Enter to get into the BIOS.Press PgUp and then Enter, and a reset key will be displayed.The prompt will change, asking for a password.Enter 3 times the wrong code in answer to the prompt.

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