clear bios password lattitude e5550

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Welcome to the Dell Community @dannyw39 

Dell Support for lost BIOS password:

https://www.dell.com/support/article/us/en/04/sln314479/dell-support-for-lost-bios-password?lang=en

Dell System prompts for a Hard Drive (HDD) or BIOS password:

https://www.dell.com/support/article/us/en/04/sln142655/dell-system-prompts-for-a-hard-drive-hdd-or-...

Best regards,

U2

https://biospassword.eu/dell-free-passwords

https://bios-pw.org/

http://dogber1.blogspot.com/2009/05/table-of-reverse-engineered-bios.html

Christophe Grenier wrote a program that calculates the master BIOS password for Dell Latitudes from the Service Tag number. That program is available online.

If a Latitude cannot be booted to run this program, call Dell Technical Support at (800)624-9896 to get the working password.

Dell Technical Support will request the Service Tag and Express Service Code from the bottom of the Latitude.

If the current user is not the original Latitude owner, Dell will transfer the used Latitude’s registration from the original owner with only the Service Tag and Express Service Code from the tag on the laptop.

To transfer a used Dell Latitude’s registration, fill out the Transfer of Ownership form on Dell’s web site.

Related Reading on BIOS Password:

• Dell BIOS password reset
• Dell BIOS password reset