Dell Inspiron 3891 - Assigning a System Setup Password; Deleting or Changing an Existing System Setup Password; Updating the BIOS; Updating the BIOS in Windows

NOTE: System and setup password feature is disabled.
Assigning a system setup password
Prerequisites
You can assign a new System or Admin Password only when the status is in Not Set.
About this task
To enter the system setup, press F12 immediately after a power-on or reboot.
Steps
1. In the System BIOS or System Setup screen, select Security and press Enter.
The Security screen is displayed.
2. Select System/Admin Password and create a password in the Enter the new password field.
Use the following guidelines to assign the system password:
● A password can have up to 32 characters.
● The password can contain the numbers 0 through 9.
● Only lower case letters are valid, upper case letters are not valid.
● Only the following special characters are valid: Space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).
3. Type the system password that you entered earlier in the Confirm new password field and click OK.
4. Press Esc and a message prompt's you to save the changes.
5. Press Y to save the changes.
The computer restarts.
Deleting or changing an existing system setup password
For this computer, the password clear feature is not performed with the service jumper. Instead, this function is accomplished
through the power button.
The Master System Password is used to clear the admin and system password.
Note the code that appears on your locked computer's screen that is generated by hashing the computer's service tag. Dell
customer support representative requires this code to generate the Master System password. Contact Dell customer support
for receiving more assistance on resetting the system setup password.
Updating the BIOS
Updating the BIOS in Windows
Steps
1. Go to www.dell.com/support.
2. Click Product support. In the Search support box, enter the Service Tag of your computer, and then click Search.
NOTE:
If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You
can also use the product ID or manually browse for your computer model.
3. Click Drivers & Downloads. Expand Find drivers.
4. Select the operating system installed on your computer.
5. In the Category drop-down list, select BIOS.
6. Select the latest version of BIOS, and click Download to download the BIOS file for your computer.
7. After the download is complete, browse the folder where you saved the BIOS update file.
8. Double-click the BIOS update file icon and follow the on-screen instructions.
System setup
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