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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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    3269 comments
    1. Paul Mastous

      23 September, 2019 at 5:12 pm

      i am locked out of my bios on a dell 11-3000 tried the codes none work tried the dell tech line I recently got divorced and lucky me my computer is registered under her name contacted her to do an ownership change in order to be able to get the bio pass code form dell, Well it has been a half a year and my computer is still locked and she feels she has won because i dont have a computer I sure could use your help service tag is 3BB96F2 I already lost the shirt off my back sure would like to keep my computer

      Reply
    2. Jacques

      16 September, 2019 at 6:15 pm

      My dell bois password is not working it is a 6530 plz hlp

      Reply
    3. Siso

      14 September, 2019 at 11:33 am

      Dell latitude e6220
      Service tag: D6TPGT1-1D3B
      Please assist system password required

      Reply
    4. Karen Elizabeth King

      11 September, 2019 at 12:25 pm

      I have tried everything including the password generator above.
      I have a Dell All in One Desktop – System Number: 3NFMDY1-1F66 Express Service Code 79473
      07801
      At Setup Unlock window he message reads . “The admin password is set on this computer, etc. etc.”
      This occured after I downloaded an UPGRADE that Dell flagged as “Critical”. The Download set a password and now I cannot get around it.

      Reply
    5. Paul Peterson

      15 August, 2019 at 11:30 am

      7n232g2-6ff1 xps 15 9560 please help admin password

      Reply
    6. PAUL

      10 August, 2019 at 7:32 am

      ive tried all the gen passwords ddnt work. ser tag 5TGDVM1-1F5A

      Reply
    7. Brittani

      8 August, 2019 at 9:12 am

      Please help w/ BIOS password. Service tag 6B90702
      Dell Inspiron 15

      Thank you

      Reply
    8. TANKREN

      5 August, 2019 at 1:09 am

      HELP PLS
      2Z3T8H2-6FF1

      Reply
    9. Serj Sotak

      3 August, 2019 at 7:30 pm

      Please help me with BIOS Admin password for Service tag 7NC3NX1

      Thank you

      Reply
    10. ALANIZ

      24 July, 2019 at 6:42 am

      5n9ww3l3
      z3wdkagi
      9GC7SqJn6D6xph5i
      18750NpWDmf5Yj5r

      Reply
    11. Marlo

      23 July, 2019 at 4:18 am

      I tried all the passwords still didn’t work my service tag is 978MFW1 is there anything else I can try

      Reply
    12. John Saunders

      16 July, 2019 at 3:36 pm

      Hdd error
      tag # 86R3ZP1
      Please help with Hdd unlock password

      Reply
    13. RAJESH SAHU

      5 July, 2019 at 5:22 pm

      HOW TO DELL SECURITY MANAGER LOST PAASWORD HOW TO RECOVER PAASWORD PLZ HELP IT TOO FASR #1JG2Y52-1F66

      Reply
    14. Reno

      30 June, 2019 at 10:19 am

      Inspiron 3542
      Tried them all but would not work
      Service Tag: C8WV632

      Please help me

      Reply
    15. alfa user

      27 June, 2019 at 9:57 am

      I need admin setup pw for Dell Inspiron 5570 with system number 24KMJR2-BF97

      Thanx in advance

      Reply
    16. Nicole

      26 June, 2019 at 8:56 am

      Hi I have a Dell Inspiron 15 with bios password. I tried using the generator but not working (I think the device im using needs a browser update). Please may someone assist me b? My. Derive tag is FMNGK52.

      Will be greatly appreciated!

      Reply
    17. Emmanuel Yeboah

      19 June, 2019 at 10:00 pm

      The password didn’t work for me.
      My service Tag is GFF7XP1-1D3B
      Latitude e6220

      Reply
      • Hey now

        9 September, 2019 at 12:22 pm

        Dell Service Tag: GFF7XP1-1D3B

        Password is Y0o7Nznft7E99P4e

        Reply
    18. APX

      15 June, 2019 at 3:18 am

      Hi,

      I’ve tried the generated keys but they don’t work for me.

      Please help,
      Dell model: XPS 14 (L421X)
      Service code: 2X989W1

      Many thanks in advance.

      Reply
    19. Carol

      29 May, 2019 at 7:59 pm

      Theo password generator didn’t work, please help me, Dell Inspiron 5423, service tag 79036W1.

      Reply
    20. tazi

      28 May, 2019 at 3:50 pm

      #6D6494J-2A7B

      Reply
    21. Sanjeev kumar

      27 May, 2019 at 8:10 am

      Inspiron 15 3521 system disable 2012abd22289e92e or service tag 3bt66rx1

      Reply
    22. Sandra Armitage

      23 May, 2019 at 9:01 am

      I have tried general user password which i got after writing my service tag down but it wont work it is still saying the same thing.. What else can i try to get access?

      Reply
    23. Nkwuka Chiedu

      18 May, 2019 at 10:20 pm

      Hello and kudos on the work you’re doing. I just bought a Dell Inspiron 3521 Laptop and when I tried to switch it on, it showed

      “Enter Current Password”

      When I entered a wrong password 3 times, it then showed me this

      System disable
      [B8220795BA52597A]

      Service Tag
      [33BV1X1]

      What do I do?

      Reply
    24. OTIS

      17 April, 2019 at 10:10 am

      I HAVE DELL INSPIRON 11 3000 SERIES BIOS ADMINISTRATOR PASSWORD FORGOTTEN MY SERVICE TAG IS 6JBX582
      HELP I WANT TO UNLOCK IT

      Reply
    25. Fidel Esquivel

      16 April, 2019 at 7:04 pm

      Please help me

      Generator did not work. Can anyone help me unlock Dell Latitude 5590 service tag GR4VRQ2 Express code 36469304858 system number: GR4VRQ2-BF97

      Reply
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