• Main Menu
  • 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.

    Leave a Reply to Karen Elizabeth King Cancel reply

    Your email address will not be published.

    3287 comments
    1. khurram

      19 March, 2022 at 2:33 pm

      DF8H9W1-1D3B I NEED PASSWORD

      Reply
    2. CmoiQueVla

      11 March, 2022 at 6:40 pm

      Hello everyone sorry in advance for my English but I use google translation because I am French, here is my problem I have just been brought a laptop which was in waste disposal but this one asks for a bios password at startup so my question can you provide me with the unlock code the brand of the pc and a Dell inspiron 1525 and at boot there is this info #JDYLK3J-595B

      Thank you in advance and apologize again for my English

      Reply
    3. Stefan Müller

      9 March, 2022 at 12:28 pm

      Please Help
      DTVHWF3-8FC8
      Bios PW

      Reply
    4. Kundaquer Mogh

      26 January, 2022 at 5:14 pm

      Generator did not work.
      Setup Unlock
      System Number: 3DV3YT2-E7A8

      Reply
    5. Danny Jacoby

      30 November, 2021 at 10:28 pm

      I have a Dell Latitude 3310 Laptop with a Bios Admin Password that is lost. I tried the generator above and none of the ones generated have worked. My System Number is B9GYD63-E7A8. Please Help. Thank You

      Reply
    6. Stephanie D Mcnutt

      23 September, 2021 at 11:04 pm

      Service tag – 5RTBHW1
      Express service code- 1256743697
      Need reset code please

      Reply
    7. bob

      3 July, 2021 at 8:54 pm

      hello,
      I have an old Dell latitude CPiA from which I need to access old files but I forgot the boot password. His serial is WH8X2-D35B, only 5 digits préfix so all password calculators are giving nothing because they all require a 7 digits prefix for serial number.
      Can you help me.
      Regards

      Reply
    8. Rafał Fox

      29 December, 2019 at 4:42 pm

      GKBLHT2-8FC8 PASSWORD:)

      Reply
    9. Help!!!)

      17 November, 2019 at 7:36 am

      3zwpgv1-1d3b
      Help unlock bios .

      Reply
      • Rack 'Em

        27 December, 2021 at 4:04 pm

        Model: Dell Latitude E6420

        Service Tag: 3ZWPGV1-1D3B

        Express Service Code: 8701599133

        Country: Germany

        BIOS Password: Az5AxB6SkW32gGo1

        Reply
      • Rolando

        18 February, 2022 at 9:37 am

        Help DELL LATITUDE 5410 bios password
        CHVYB93-8FC8 please help can get it unlock

        Reply
    10. seth

      20 October, 2019 at 7:59 pm

      i have a dell latitude e6540 service tag is 9LCT462-1F66 none of the generated codes worked and i want to know if anyone knows it thanks

      Reply
    11. hari babu

      11 October, 2019 at 12:45 pm

      service tag 648W402

      please bios password

      Reply
      • Brad

        16 December, 2020 at 2:08 am

        I have a Dell latitude 3440 with the service tag 3HCKC12. I want the system password please.

        Reply
    12. reijo vehmaa

      7 October, 2019 at 6:23 pm

      I have tried all passwords but they dont work can you help me?
      Service Tag (System Number) 9XQJK4J-2A7B
      express service code 216-310-073-95
      dell latitude E6400

      Reply
    13. S

      4 October, 2019 at 8:33 am

      Service.tag HDZYXR2. Need.password

      Reply
    14. King

      29 September, 2019 at 9:12 pm

      I Really Appreciate, that worked like I never expected. The 4th code Did the Miracle.

      Reply
    15. Jessica

      29 September, 2019 at 11:48 am

      I need the HDD Password for Dell with service tag #: 20W50Q1
      Please, any help would be appreciated.

      Reply
    16. 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
    17. Jacques

      16 September, 2019 at 6:15 pm

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

      Reply
    18. Siso

      14 September, 2019 at 11:33 am

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

      Reply
    19. 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
    20. Paul Peterson

      15 August, 2019 at 11:30 am

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

      Reply
    21. PAUL

      10 August, 2019 at 7:32 am

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

      Reply
    22. Brittani

      8 August, 2019 at 9:12 am

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

      Thank you

      Reply
    23. TANKREN

      5 August, 2019 at 1:09 am

      HELP PLS
      2Z3T8H2-6FF1

      Reply
    24. Serj Sotak

      3 August, 2019 at 7:30 pm

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

      Thank you

      Reply
    25. ALANIZ

      24 July, 2019 at 6:42 am

      5n9ww3l3
      z3wdkagi
      9GC7SqJn6D6xph5i
      18750NpWDmf5Yj5r

      Reply
    26. 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
    27. John Saunders

      16 July, 2019 at 3:36 pm

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

      Reply
    28. 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
    29. Reno

      30 June, 2019 at 10:19 am

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

      Please help me

      Reply
    30. 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
    31. 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
    32. 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
    33. 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
    34. Carol

      29 May, 2019 at 7:59 pm

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

      Reply
    35. tazi

      28 May, 2019 at 3:50 pm

      #6D6494J-2A7B

      Reply
    36. Sanjeev kumar

      27 May, 2019 at 8:10 am

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

      Reply
    37. 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
    38. 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
    39. 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
      • Fatih senel

        17 October, 2019 at 8:08 am

        Inspiron n5040
        Servic tag JKN7DR1

        Reply
    40. 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
    BIOS
    319 queries in 0.462 seconds.