Fix Secure Boot State Unsupported error in Windows (2023 updated)

Here's how to Fix Secure Boot State Unsupported error in Windows.

i. The "Secure Boot State Unsupported" error can occur if your computer's BIOS is not set to UEFI mode or if Secure Boot is not enabled. To fix this error, you need to change your BIOS settings to UEFI mode and enable Secure Boot.
To do this, follow these steps:

Restart your computer and press the key that enters your BIOS setup. This key is usually displayed on the screen during startup.
In your BIOS setup, find the "Boot" or "System Configuration" menu.
Change the "Boot Mode" setting to "UEFI" or "UEFI and Legacy".
Enable the "Secure Boot" option.
Save your changes and exit your BIOS setup.

Once you have made these changes, restart your computer and the "Secure Boot State Unsupported" error should be fixed.
If you are still having problems, you can try the following:

Check your computer's manufacturer's website for updated BIOS instructions.
Contact your computer's manufacturer for help.

ii. Secure Boot is a security feature that helps to protect your computer from malware and other attacks. It does this by verifying the authenticity of the software that is loaded when your computer starts up. This helps to prevent malware from being loaded onto your computer and from taking control of your system.
Secure Boot is a valuable security feature, but it does have some drawbacks. One drawback is that it can make it difficult to install certain software, such as Linux distributions. This is because Secure Boot only allows software to be loaded if it has been signed by a trusted authority. If the software you want to install is not signed by a trusted authority, you will need to disable Secure Boot in order to install it.
Another drawback of Secure Boot is that it can be difficult to troubleshoot problems. If you are having problems with your computer, it can be difficult to determine whether the problem is caused by Secure Boot or by something else. This is because Secure Boot can prevent your computer from starting up if it detects any problems.
Overall, Secure Boot is a valuable security feature, but it does have some drawbacks. If you are concerned about security, you should enable Secure Boot on your computer. However, if you are having problems with your computer, you may need to disable Secure Boot in order to troubleshoot the problem.
Here are some of the pros and cons of Secure Boot:

Pros:
Helps to protect your computer from malware and other attacks.
Can be used to prevent unauthorized software from being loaded onto your computer.
Can be used to verify the authenticity of the software that is loaded when your computer starts up.

Cons:
Can make it difficult to install certain software, such as Linux distributions.
Can be difficult to troubleshoot problems.
Can prevent your computer from starting up if it detects any problems.

iii. There are a few known bugs in Secure Boot, some of which are listed below:

CVE-2017-15361: This bug allows an attacker to bypass Secure Boot by modifying the firmware of a USB device.
CVE-2017-5689: This bug allows an attacker to bypass Secure Boot by modifying the BIOS of a computer.
CVE-2017-5715: This bug allows an attacker to bypass Secure Boot by modifying the operating system of a computer.

These bugs have been patched by Microsoft, but it is important to keep your computer up to date with the latest security updates to ensure that you are protected from these vulnerabilities.
In addition to these bugs, there are a few other limitations of Secure Boot that you should be aware of:

Secure Boot only protects against attacks that try to load unauthorized software onto your computer. It does not protect against attacks that try to exploit vulnerabilities in the software that is already loaded on your computer.
Secure Boot can be disabled by an attacker who has physical access to your computer.
Secure Boot can be bypassed by using a modified USB device or by modifying the BIOS or operating system of your computer.

Overall, Secure Boot is a valuable security feature, but it is important to be aware of its limitations. If you are concerned about security, you should enable Secure Boot on your computer. However, you should also keep your computer up to date with the latest security updates and be aware of the ways that Secure Boot can be bypassed.