{"id":163805,"date":"2024-03-11T05:17:15","date_gmt":"2024-03-11T05:17:15","guid":{"rendered":"https:\/\/www.stellarinfo.com\/blog\/?p=163805"},"modified":"2025-07-18T08:53:39","modified_gmt":"2025-07-18T08:53:39","slug":"fix-secure-boot-grey-windows-11","status":"publish","type":"post","link":"https:\/\/www.stellarinfo.com\/blog\/fix-secure-boot-grey-windows-11\/","title":{"rendered":"[SOLVED] – Secure Boot is Greyed Out on Windows 11"},"content":{"rendered":"

When Microsoft launched Windows 11, it came with a general list of system requirements. In that list, there was a necessary requirement that seemed odd to many users. This was the Secure Boot<\/strong> capability. Many users felt this way as it was an optional feature in Windows 10 designed for systems with 2 OS installed.<\/p>

Secure Boot<\/strong> is a critical system feature designed by Microsoft to protect a PC during a system boot. It prevents unsigned or malicious code from loading while a computer boots up.<\/p>

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In most cases, a user can tweak Secure Boot settings by simply going into the BIOS<\/strong>. However, in some situations, Secure Boot is greyed out<\/strong> and is stuck in either an enabled or disabled state. The option is usually greyed out due to unsupported hardware or MBR partitioning style of the boot drive.<\/p>

Let’s see why it happens and some methods to fix it.<\/p>

What is Secure Boot?<\/h2>

A computer is most vulnerable while it is booting. Certain malicious code or viruses can activate and infect the system during this process. To prevent any unsigned code from loading, Microsoft introduced the Secure Boot<\/a> feature with Windows 10. Secure Boot is an essential security feature by Microsoft for safeguarding the system and preventing an unknown code from booting while the system boots.<\/p>

Eventually, with Windows 11, Microsoft made it necessary for a PC to be capable of a Secure Boot.<\/p>

Most modern computers support Secure Boot, but some might not. This is due to misconfigured settings or unsupported system configuration. As the Secure Boot setting is in UEFI\/BIOS, the boot drive must have GPT partitioning style to enable it on a PC. It doesn’t work on Legacy BIOS.<\/p>

Why is Secure Boot Greyed Out?<\/h2>

When in UEFI, you can easily tweak the Secure Boot settings. However, if you try to enable Secure Boot on Windows 10 installed on an MBR partitioned boot drive with Legacy BIOS, it will be greyed out or absent.<\/p>

Here are some prominent reasons why Secure Boot is greyed out on a Windows PC –<\/p>