To unlock the Secure Boot option, you can follow the steps below: First, find the Boot Mode option in BIOS settings and set it to Legacy mode.This will allow you to change the Secure Boot configuration.Please note that BIOS interfaces of different computer brands and models may be different, but generally, "Secure Boot" or similar terms will appear in the "Boot" or "Security" submenu. Next, you need to enter the BIOS setup page of your computer.Generally, press the specific key (such as Del, F2, F12, etc.) to enter the BIOS setting page.If you are unable to determine the correct key, please consult the computer's user manual or the manufacturer's official website for detailed instructions. On the BIOS setup page, use the arrow keys to navigate to the safe boot option and select "Enable" or similar terms to enable the safe boot feature.If you have enabled the Secure Boot feature but still cannot change the Secure Boot configuration, you may need to update the BIOS firmware version of your computer. Finally, after making all necessary changes, save and exit the BIOS setup page, and restart the computer for the changes to take effect. I hope the above information will help you!If you have any other questions, please feel free to ask.
First go to the Dell website to download the driver for this model of WIN7. If it is not provided, it means that the computer does not support the installation of WIN7 and cannot be installed
The BIOS of the computer preinstalled with win8/win8.1/win10 system starts SecureBoot by default. Secure boot is designed to prevent the computer from installing other operating systems. If you want to change to win7, you need to turn off SecureBoot. However, some users find that the SecureBoot item in the BIOS is grayed out and cannot be changed. What is the matter?Next, I will introduce the solution to the problem that SecureBoot cannot be closed in gray.Related tutorials: pre install win8/win8.1 to change win7 to set BIOS steps and methods Summary of pre install win8/win10 computer to disable uefi boot method 1: 1. Press F2/Del and other keys to enter the BIOS setting, and all brands of computers enter the BIOS setting method;2. Find OSOptimizedDefaults and set it to Disabled or OtherOS;3. If it is still grayed out, LoadDefaultSettings returns to the default settings.Method 2: 1. Some brands of computers need to set BIOS passwords to modify BIOS options;2. Select SetSupervisorPassword in Security, and press Enter to set the password.The above is the solution to the problem that SecureBoot is grayed out in BIOS settings and cannot be changed. Users who encounter this problem can follow the above method to solve it.
