If a software tool fails, you can contact Dell Support to receive a master unlock code. Note that if your device is out of warranty, Dell may charge a service fee for this. Quick Fixes Without Software
On older laptops and most desktops, removing the for 30 seconds may reset BIOS settings to factory defaults. However, on newer Enterprise/Latitude models, this will not remove the password as it is stored in persistent memory. dell bios password reset tool download
The site generates a "Master Password" based on your serial number. If a software tool fails, you can contact