Dell Latitude 7220EX Rugged Extreme Tablet Re-imaging guide for Microsoft Wind - Page 7

Updating or Resetting the BIOS, Flashing the BIOS, Clearing CMOS settings, Trusted Platform Module (

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4 Updating or Resetting the BIOS Flashing the BIOS Dell recommends flashing the BIOS when an update is available or when you replace the system board. To flash the BIOS: 1. Turn on your computer. 2. Go to https://www.dell.com/support. 3. Click Product support, enter the Service Tag of your computer, and then click Submit. NOTE: If you do not have the Service Tag, use the Autodefect feature or manually browse for your computer model. 4. Click Drivers and downloads → Find it myself. 5. Select the operating system installed on your computer. 6. Scroll down the page, and expand BIOS. 7. Click Download to download the latest version of the BIOS for your computer. 8. After the download is complete, go to the folder where you saved the BIOS update file. 9. Double-click the BIOS update file icon, and follow the instructions on the screen. Clearing CMOS settings When, flashing your computer with the latest BIOS update results in your computer being unable to boot, a BIOS reset is necessary. Clearing the CMOS settings resets the BIOS to factory settings. For more information about clearing the CMOS settings, see your computer Service Manual. Trusted Platform Module (TPM) security TPM must be enabled in the BIOS setup program for it to be deployed on the computer. Follow these steps to enable and configure the TPM: 1. Turn on or restart your computer. 2. Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program. The BIOS setup program is displayed. 3. On the left pane, select Security → TPM Security → Clear TPM. 4. Select or clear any of the following options to enable or disable it, respectively: • Enabled (Default): The BIOS enables the TPM during POST, and accessible by the operating system. • Disabled: TPM will not be enabled during the POST and is inaccessible to the operating system. • TPM On: The TPM is enabled and activated. • Clear: The BIOS clears the information that is stored in the TPM. 5. Save the settings and exit. Updating or Resetting the BIOS 7

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Updating or Resetting the BIOS
Flashing the BIOS
Dell recommends flashing the BIOS when an update is available or when you replace the system board. To flash the BIOS:
1.
Turn on your computer.
2.
Go to
.
3.
Click Product support, enter the Service Tag of your computer, and then click Submit.
NOTE:
If you do not have the Service Tag, use the Autodefect feature or manually browse for your computer model.
4.
Click Drivers and downloads → Find it myself.
5.
Select the operating system installed on your computer.
6.
Scroll down the page, and expand BIOS.
7.
Click
Download
to download the latest version of the BIOS for your computer.
8.
After the download is complete, go to the folder where you saved the BIOS update file.
9.
Double-click the BIOS update file icon, and follow the instructions on the screen.
Clearing CMOS settings
When, flashing your computer with the latest BIOS update results in your computer being unable to boot, a BIOS reset is necessary.
Clearing the CMOS settings resets the BIOS to factory settings. For more information about clearing the CMOS settings, see your
computer
Service Manual
.
Trusted Platform Module (TPM) security
TPM must be enabled in the BIOS setup program for it to be deployed on the computer. Follow these steps to enable and configure the
TPM:
1.
Turn on or restart your computer.
2.
Press F2 when the Dell logo is displayed on the screen to enter the BIOS setup program. The BIOS setup program is displayed.
3.
On the left pane, select
Security → TPM Security → Clear TPM
.
4.
Select or clear any of the following options to enable or disable it, respectively:
•
Enabled (Default)
: The BIOS enables the TPM during POST, and accessible by the operating system.
•
Disabled
: TPM will not be enabled during the POST and is inaccessible to the operating system.
•
TPM On
: The TPM is enabled and activated.
•
Clear
: The BIOS clears the information that is stored in the TPM.
5.
Save the settings and exit.
4
Updating or Resetting the BIOS
7