How to clear an unknown BIOS or CMOS password Question How to clear an unknown BIOS or CMOS password. Answer Tip: The below steps are for a desktop computer and do not include steps on how to clear a laptop CMOS password . If you encounter a password prompt at boot or the BIOS or CMOS setup is locked as shown below and you do not know the password you will need to clear the BIOS password using the suggestions listed below. Clear using jumper (recommended) Caution: When inside the computer be sure you're aware of the potential damage that can be caused by ESD . On the computer motherboard locate the BIOS clear or password jumper or dip switch and change its position. This jumper is often labeled CLEAR, CLEAR CMOS, JCMOS1, CLR, CLRPWD, PASSWD, PASSWORD, PSWD or PWD as shown in the picture to the right. To change the jumper remove it from the two pins its currently on so that it covers the pin that is not covered. For example, in the picture to th
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