: Many Dell desktops have a physical "PSWD" or "PW_CLR" jumper on the motherboard. Moving this jumper while the PC is off will clear the password on the next boot. CMOS Battery Removal
Entering incorrect master passwords too many times can permanently "brick" or lock the motherboard. dell bios password reset tool download
Most Dell systems generate a or a Hint Code after three incorrect password attempts. Look for a string like #ABC1234-595B . : Many Dell desktops have a physical "PSWD"
Dell devices generate a unique (or Asset Tag for Latitudes/Optiplexes). When you enter a wrong password three times, the system displays a "System Disabled" code or a Hash Code (a long string of numbers and letters, usually 32 characters). This hash is the key to unlocking the system. Most Dell systems generate a or a Hint
Do you have the and the suffix code (the letters/numbers after the dash) appearing on your lock screen?