Dell inspiron 1545 sevice tag # 1r4bwj1-595b I would please need the master reset service tag number

if you have forgotten it the only way I know is to remove the bios battery

If you don't have the password, no one does. Do a system recovery.

312fdx59

hope it helps

ziea031w

hope it helps

go to biosremoval.com they can help, works for me every time.
my laptop had bios password hard drive password and windows password. which was unlocked using bios removal services from biosremoval.com

Dell Inspiron BIOS Password Recovery

Each Dell Inspiron has a master password which will clear the BIOS
password. You can get this number by calling Dell Technical Support at
(800)624-9896.

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

If you were not the original owner of the Inspiron, Dell will transfer
registration of the used Inspiron from the original owner with only
the Service Tag and Express Service Code from the tag on the laptop.

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

flash BIOS in support.dell.com bios master password will be reset

In consideration of remaining all programs and data of the computer,I recomend you to use a passowrd tool:Windows Password Rescuer.It supports all versions of windows operation system.Recover Windows password without lose anything.Here are the simple guide:
Step 1: Download Windows Password Rescuer Personal and install it in any available computer
Step 2: Burn a bootable CD/DVD or USB flash drive
Step 3: BIOS settings of your locked computer to make it boot from CD/DVD or USB flash drive
Step 4: Reset Windows password successfully.


You also can use Windows Password Rescuer to add a new user with administrator privilege to your Windows. With this New user account you can logon your locked computer directly to copy important data from the locked computer if you want to reinstall your Windows system at last.
When you finish two steps, you can login your windows quickly without any password.
You also can reffer to this article: Recover Windows admin password safely and quickly.

Dell Inspiron BIOS Password Recovery

Each Dell Inspiron has a master password which will clear the BIOS
password. You can get this number by calling Dell Technical Support at
(800)624-9896.

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

If you were not the original owner of the Inspiron, Dell will transfer
registration of the used Inspiron from the original owner with only
the Service Tag and Express Service Code from the tag on the laptop.

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

Hope it would help..

go to www.novatecdirect.com they can help, works for me everytime.