If you're trying to enable the Windows 10 or 11 Sandbox feature and find that it's grayed out, you'll need to check your BIOS options.



We're assuming your computer supports SLAT or Second Level Address Translation, which works with Hyper-V with both Intel and AMD computers.

We need to enter the BIOS and verify that any of the following settings in your BIOS are set to Enabled or Yes. These settings can usually be found in the Security section of your BIOS:

Hyper-V - Enabled
VM Monitor Mode Extensions - Yes
Virtualization - Enabled
Second Level Address Translation (VT-d or RVI) - Enabled
Data Execution Prevention - Enabled

Reboot and press the proper key to enter setup to get into your BIOS. You should see the correct key when the black screen appears and before the Windows splash screen.



As you can see, my key is DEL or F2. Yours could be F10, F12, or one of the other Function keys. You can guess or Google the name of your computer or motherboard followed by BIOS to find out.

If you don't see a Security section, try and go into Advanced Options, as seen in the lower right corner as F7.



Similar:

How to Enable the Windows Defender Sandbox in Windows 10 & 11

How to Reset Your BIOS to Optimal, Default or Factory Settings

How to Check Your BIOS Version

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