If a desktop lacks a labeled jumper, or if you are working on an older Dell laptop, clearing the Complementary Metal-Oxide-Semiconductor (CMOS) volatile memory will wipe system settings back to factory defaults.
Removing the coin-cell battery for 30 seconds can sometimes clear settings on older boards, though this rarely works on modern encrypted Dell laptops.
Carefully pop the battery out of its socket (or unplug its wire harness if it is wrapped in shrink-tubing). dell bios password reset tool download
: Restart your computer and enter the wrong BIOS password 3–5 times until an error code or "System Disabled" message appears. Contact Support Dell Technical Support
Turn on your Dell computer and press F2 to enter the BIOS Setup. If a desktop lacks a labeled jumper, or
You search the internet for a expecting a simple .exe file to click your problems away.
If you are currently locked out of your Dell, close the browser tabs offering free EXE files. Instead, grab your Service Tag, find the hash on the lock screen, and either visit an online calculator (for older models) or contact Dell directly. Your data and hardware security are worth the small fee for an official reset. : Restart your computer and enter the wrong
While Dell officially recommends contacting their ProSupport for a master code, several reputable community tools exist: