# 2. Secure Boot

* Find the **Secure Boot** setting in your BIOS menu. If possible, set it to **Disabled**. This option is usually in either the **Security** tab, the **Boot** tab, or the **Authentication** tab.
* Save changes and exit. The PC reboots.
* In some cases, you may need to change other settings in the firmware, such as enabling a Compatibility Support Module (CSM) to support legacy BIOS operating systems. To use a CSM, you may also need to reformat the hard drive using the Master Boot Record (MBR) format, and then reinstall Windows. For more info, see [Windows Setup: Installing using the MBR or GPT partition style](https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/windows-setup-installing-using-the-mbr-or-gpt-partition-style?view=windows-11).
