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  • How to Reset a Dell BIOS Password



    To discover a working BIOS password for your Dell, enter the Service Tag from your Dell into our password generator tool. The Service Tag will be documented on a small sticker on the bottom, back, or side of your Dell PC. The Service Tag is a 7 digit identifier that is unique to your Dell. The Service Tag is different from the 10 digit Express Service Code. The Dell web site also has a tool to automatically detect your Service Tag.

    Dell BIOS Password Generator Tool

    Dell Dimension BIOS Password Recovery

    The BIOS password may be cleared from a Dell Dimension by moving the password jumper on the motherboard.

    The password jumper’s location on a Dell Dimension motherboard can be found by reviewing the Dimension User Guides.

    For most Dell Dimension desktops, the steps to reset a BIOS password and clear all CMOS settings are:

    • Locate the 3-pin CMOS password reset jumper on the system board.
    • Remove the jumper plug from pins 1 and 2.
    • Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
    • Replace the jumper plug on pins 1 and 2.

    Dell jumpers

    Dell Optiplex BIOS Password Recovery

    The BIOS password may be cleared from a Dell Optiplex by removing the password jumper (PSWD) from the motherboard.

    The password jumper’s location on a Dell Optiplex motherboard can be found by reviewing the Optiplex User Guides.

    For most Dell Optiplex desktops, the steps to reset a BIOS password and clear all CMOS settings are:

    • Locate the 3-pin CMOS password reset jumper on the system board.
    • Remove the jumper plug from pins 1 and 2.
    • Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
    • Replace the jumper plug on pins 1 and 2.

    Dell Inspiron BIOS Password Recovery

    Each Dell Inspiron has a master password that clears the BIOS password. Call Dell Technical Support at (800)624-9896 to get this number.

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

    If the current user is not the original Inspiron owner, Dell will transfer the used Inspiron’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 Inspiron’s registration, fill out the Transfer of Ownership form on Dell’s web site.

    Dell Latitude BIOS Password Recovery

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

    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:

    Please use the password generator tool above before asking for password in the comments.

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    3230 comments
    1. alem abed

      8 January, 2019 at 4:40 pm

      Please, help me unlock my dell vostro 3568 My system number is:
      420LMJ2-6FF1
      thanks

      Reply
    2. Harold Kindle

      8 January, 2019 at 3:44 pm

      Generator did not work. Can anyone help me unlock Dell Latitude 10 service tag H7L8RT1

      Reply
    3. Mistie

      8 January, 2019 at 3:41 am

      I need the password for
      Dell latitude d531
      tag #:24307855669
      Help please…

      Reply
    4. abed alem

      7 January, 2019 at 7:50 pm

      I have tried all passwords but they dont work
      Service Tag (System Number) #420LMJ2-6FF1
      dell vostro 3568

      Reply
    5. Harovelli Don

      7 January, 2019 at 1:12 pm

      Can you please help me unlock my Dell Latitude 10 Tablet. Service Tag H7L8RT1.
      I broke the keyboard so I have to use the one on the screen.

      Reply
    6. Hussein

      23 December, 2018 at 6:47 pm

      #123***-595B
      r78zgc63 not much

      Reply
    7. dä Beni

      27 November, 2018 at 9:59 am

      Try do downgrade the BIOS. For me, it didn’t work with Version A26 but with A06 it did. You can downgrade the BIOS, even the upgrade-script is warning you several times of downgrading – but it works fine. For me (E4300) the filename was E4300A06.EXE where A06 is the version of the bios. You can’t access that old versions of the BIOS directly but enter the filename in Google works like a charm and directs you to the respective page of the Dell-Support. Good luck!

      Reply
    8. BigMoneyCox

      26 November, 2018 at 6:23 am

      Ftw;\\bios-pw.o rg
      Check them out
      Almost jumped the bios chip, don’t.
      ABQ NM
      Mars2020!

      Reply
    9. Aram

      21 November, 2018 at 3:14 pm

      i have try all codes for my Dell Vostro 2520
      but not working
      service tag (BRZMHW1)
      plz help

      Reply
    10. Mrcom

      12 October, 2018 at 6:17 am

      Tried the password generator and the password generated did not work.

      Service Tag (System Number) #5N2C5Q1-1F5A

      Latitude E6410

      Reply
    11. Mr Com

      12 October, 2018 at 6:16 am

      Tried the password generator and the password generated did not work.

      Service Tag (System Number) #5N2C5Q1-1F5A

      Latitude E6410

      Reply
    12. Clay

      7 October, 2018 at 9:38 pm

      Need the BIOS password for my dell inspirion
      SERVICE TAG IS F73V2C2
      Express code 33081486482

      Reply
    13. OBED

      9 September, 2018 at 10:18 am

      please Tried the password generator and the password generated did not work.
      its E7250 service tag 85R3T32-1F66

      Reply
    14. Unshakable

      20 July, 2018 at 9:16 pm

      Did not work for me.

      Dell Precision M4800

      7BT5XZ1-1F66

      I appreciate your help.

      Reply
    15. Tony

      19 July, 2018 at 10:10 am

      hi please help me my laptop dell latitude e6400 bios password #BQ7BCK1-2A7B

      Reply
    16. Nydzarm

      17 July, 2018 at 5:29 pm

      I forgot the administration password..
      Laptop dell 1420
      Servis tag :DYXYY1S
      Express serbice code: 30411078112

      Pls help me..

      Reply
    17. Mete

      13 July, 2018 at 11:01 am

      Please I need password for dell Latitude 7390 ,,,,, service tag: JYYWRN2-BF97

      I tried all password and no luck
      Also i need the description of (ctrl+enter) weather it’s required or not.
      ASAP PLEASE

      Reply
    18. Freddie

      7 July, 2018 at 7:18 pm

      Hi!

      I have tried all passwords but they dont work :/

      does anyone actually knows if it can be done on a Dell E5250 with servicetag 3S9KQ72-6FF1?

      Thanks in advance

      Reply
    19. Dan

      31 May, 2018 at 3:43 pm

      Tried the password generator and the password generated did not work.

      Service Tag (System Number) 7G92ZN1-2A7B

      Latitude E4310

      Reply
      • Raunak

        20 December, 2018 at 5:33 am

        Password is BKiJis4O3508T2N1
        After typing your password, to accept press left CTRL key and holding this key Press Enter twice

        Reply
    20. Brucha

      13 May, 2018 at 3:22 am

      Generator worked a dream for a latitude D520. Case sensitivity seemed to matter when entering the serial number. All good. Thanks!!

      Reply
    21. Balde Elhadj Ougailou

      8 May, 2018 at 4:44 pm

      Mr mon Ordinateur Dell latitude E 5440 son bios est protégé par mot passe
      J’ai essayé le générateur de mot de passe qui est: #43WSN12-1F66, mais sa pas marcher, s’il vous plaît pourriez-vous m’aider

      Reply
    22. SONJA

      30 April, 2018 at 4:02 pm

      TRIED PASSWORD TOOL WITHOUT SUCESS LATITUDE E6510 DELL SECURE MANAGER NEED SYSTEM OR ADMINISTRATOR PASSWORD NO CLUE BOUGHT AT FLEE MARKET FOR 10 BUCKS SO TRYING TO MAKE WORK TY

      Reply
    23. Akhir Muharnoto

      25 April, 2018 at 4:45 am

      Not worked your password generator,
      Dell Inspiron 14
      Service tag : 6LBS832
      Express Service Code : 14350276334
      And please give the password
      Thx

      Reply
    24. soft

      17 April, 2018 at 3:10 pm

      E6400 DZN5B4J-1F5A

      Reply
    25. daivesh

      27 March, 2018 at 9:30 am

      how to reset bios password in dell latitude E5420

      Reply
    26. Krasimir

      22 March, 2018 at 3:38 pm

      Please help, mine Dell Latitude E5440 SERVICE Tag FM3GJ12 , THANK YOU!

      Reply
    27. martin

      15 March, 2018 at 4:58 pm

      hi i have a dell inspiron 15 service tag: 3NSP612. I forgot my bios password,please help me i am now stuck with it.

      Martin

      Reply
    28. RJ

      23 February, 2018 at 2:17 pm

      Of course the generator didn’t work for me.

      Help please?

      G04R082-6FF1

      Reply
    29. Leo

      15 February, 2018 at 3:07 pm

      Tried the password generator, no dice, could you please help me??
      Grazie, Leo

      service tag DSFQ94J- 1F5A

      Latitude E6400

      Reply
    30. Saif

      13 February, 2018 at 7:27 am

      I used to above given password generator but the passwords did not work for me. My laptop is dell latitude e6520 having service code GMBC3R1. My laptop is working well but when I install the updated bios, it asks for admin password.
      Please help

      Reply
    31. Alexia Stewart

      18 January, 2018 at 7:25 am

      The password generator worked! I thought I was going to have to take the motherboard out, but you saved me quite a bit of time. Thank you!

      Reply
    32. Аександр

      9 January, 2018 at 11:12 pm

      Добрый день.
      Испробовал все пароли генератора не подошли.
      Помогите, пожалуйста , с паролем.
      Service code 13260902078
      Service Tag 63B75J2

      Reply
    33. Doug Bachert

      6 January, 2018 at 3:30 am

      Generator doesn’t work. Hopefully someone can help me bypass this bios password…

      Service Tag : 990YQT1
      Express Service Code : 20136857653

      Reply
    34. Szymon

      26 December, 2017 at 5:20 pm

      None of the passwords seem to work, could you help? tag BBL4ZN1-1F5A

      Reply
    35. scott faulkner

      23 December, 2017 at 1:07 am

      HI please can you help i got a latitude E6320 dell laptop from my sister with no bios password.
      service tag C7V25R1
      service code 26596820125.
      please can anyone help me thanks…

      Reply
    36. Nico eerens

      22 December, 2017 at 4:59 pm

      hello, i forget the password from my Dell E6410 service tag is 3Y373Q1-1F5A so please help me to the password then i can entered the bios please THX.
      regards,
      Nico Eerens

      Reply
    37. jOHNNY

      19 December, 2017 at 12:45 am

      Generator code not working on my laptop

      Dell Latitude E4310

      Services tag – BL5L62S

      I need master password BIOS for my Dell latitude

      Reply
    38. Gnoumou

      23 November, 2017 at 1:50 pm

      Hi, please help . Dell Latitude 2110 laptop service tag (s/n) 2jq7cn1 Need BIOS password please

      Reply
    39. Dana Vanderark

      15 November, 2017 at 4:12 am

      Tried the password generator, no dice, could you please help me??
      Dell inspiring mini 1010
      Service tag# 5G834L1

      Reply
    40. Roz

      14 November, 2017 at 1:44 am

      Hi, please help . Dell Latitude 3340 laptop service tag (s/n) J13CL52 Need BIOS password please

      Reply
    41. Maher

      12 November, 2017 at 9:48 pm

      Please reset master password
      Latitude E5430
      Servicetag 64SK3X1-1D3B

      Reply
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