How To: Boot into UEFI Mode on Surface

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The UEFI or Unified Extensible Firmware interface on Microsoft Surface devices provides faster commissioning, new features and increased security. It replaces the traditional BIOS of a computer and can be used to manage firmware settings on a Surface device. It should not be necessary to change these settings under normal conditions. But if you wish, you can change a number of parameters such as battery limiter, start order, safer start and more. In this manual, you will learn how to start with UEFI settings on any Surface device under Windows 10.

Since the first version of Microsoft Surface Pro and Surface 3, Microsoft has implemented a new firmware called Unified Extensible Firmware Interface (UEFI) on these devices. Because this new firmware interface allows your Surface to start faster and get better security improvements.

Since Surface Pro 4, Microsoft has developed its own UEFI Surface for use with newer devices. This new UEFI Surface is currently being used on newer devices such as Surface Book and Surface Studio.

In this article, you will learn how to access the UEFI Surface parameters. You will also learn how to configure UEFI settings to improve the security of your device, check your device information, and more.

Use the Windows 10 Settings App application.

1. Open the Windows 10 Settings application and navigate to the next path:
2. Update and security > Recovery
3. In the Advanced Options section, select Restart now.
4. When it starts from the Advanced Options screen, select the options in the order you specify:
5. Troubleshooting > Advanced options > UEFI firmware settings > Restart
6. The device is started on the UEFI Firmware Settings page of your Microsoft Surface device.

UEFI menu options

The UEFI parameters that you can modify depend on the surface model you have.

Surface 3

1. Reliable Platform Module (TPM)
2. The currently configured TPM status (On or Off) is highlighted. To change the status, select the other one. When you are finished, select Exit configuration.
3. Secure priming control
4. Select Secure Boot Control to enable or disable this feature. If Secure Boot Control is enabled, you have the following additional option:
5. If secure starter keys are installed, you can delete them by selecting Delete all secure starter keys.
6. Configuring an alternative start command
7. To select the order in which your surface starts, select Configure Alternative System Boot Order and select one of the following options:
   SSD only
   Network -> USB -> SSD
   USB -> Network -> SSD
   USB -> SSD
   Network -> SSD
   administrator password

This option allows you to create a password to prevent others from changing the UEFI settings. Companies that need to protect sensitive information usually use an administrator password.

Exit the installation

Save and exit. To save and exit your changes, select Exit configuration > Yes.

Exit without saving. To exit the menu without saving your changes when using a surface input cover, press Esc and select Yes.

https://support.microsoft.com/en-us/help/4023532/surface-how-do-i-use-the-bios-uefi

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