Legacy Boot is Greyed Out? Fix it in Just 3 Simple Steps

If Legacy Boot is greyed out, try disabling the Secure Boot

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Legacy Boot is the boot process is used by the BIOS firmware to initialize hardware devices on the system. However, if the Legacy boot is greyed out, selecting and using this option is impossible.

However, if you want to use dual-boot on your computer, it’s necessary to enable this feature properly. Thus, this article will discuss the causes of this problem and show you the ways to fix it.

Why is Legacy boot greyed out?

What do I do if the Legacy boot is greyed out?

We recommend you go through the following preliminary checks to see if you can fix the problem:

1. Disable Secure Boot

Since Secure Boot can interfere with the functionality of the Legacy Boot, disabling it will help if the Legacy boot is greyed out.

2. Disable Platform Trusted Technology

Disabling the Intel PTT feature will enable the Legacy Boot option and fix the greying-out issue in the system BIOS.

3. Disable Modern Standby

The steps above will disable the Modern Standby and fix any power mode interfering with the Legacy Boot option.

Read how to fixerrors accessing the Registryif you run into issues with the steps above.

Alternatively, you can go through our guide on how to fixLegacy boot issueson Windows PCs. Likewise, read our detailed article oninstalling Windows 11 on Legacy BIOSin a few steps.

Should you have further questions or suggestions, kindly drop them in the comments section.

Legacy Boot is Greyed Out? Fix it in Just 3 Simple Steps#

Why is Legacy boot greyed out?#

What do I do if the Legacy boot is greyed out?#

1. Disable Secure Boot#

2. Disable Platform Trusted Technology#

3. Disable Modern Standby#