I forgot my authentication password system for dell latitude e5500 no service tag ,computer system #DFDNXG1-2A7B need to reset Thanks

Hi Mar Mar,
As far as I know once the you forgot your BIOS password no more options to get it anymore. You may also wanted to talk to Dell Tech Support 1-877-542-3355 in order for them to check if they can still do something about it. Worse scenario would be replacing your MOBO.

Remove your cmos battery for a while then setup bios again before booting operating system.

have you tried contacting Dell's tech support??

Hi

Please send me the service tag of your dell latitude e5500 then its easy to give your bios password

run in a safemode windows. and remove your password then restart again your pc.

open start-run and type control userpasswords2 in the new window select one of the users and click on the reset password to reset their passwords.

here try this password: vfPI6iX4Vx86P1bU
don't pay for something that should be free

The BIOS-password exists for _your_ protection; if a thief is in possession of your computer, the password prevents the thief from using the stolen computer.

As the owner of the computer, find the original sales-receipt, to prove ownership, and telephone Dell, to get assistance from Dell to bypass that password.

send me service tag ill send u master password

Dell Laptop with bios or hard drive password set ? Unlock your dell laptop using the link below if it display a message that says "this computer system is protected by a password authentication system, you cannot access the data on this computer without the primary or administrator password, when you turn on the computer. This message is what you get if the BIOS is protected by a password. or you get system disabled

Go to: http://dell-inspiron-b130-bios-password.biospwd.com to get your dell bios password authentication and get full access to your dell computer, they can unlock almost all dell laptop such as dell inspiron, xps, latitude, precision, studio, vostro