Kernel DMA Protection – Setup

Kernel DMA Protection can usually be disabled from the Windows 11 security settings. On some PCs the option is controlled by the BIOS instead, usually through Kernel DMA Protection, VT-d or the virtualization settings.

Check the current status

1. Press Win + R, type msinfo32 and press Enter.
2. Look for Kernel DMA Protection.
3. If the value is On, follow one of the methods below.

Method 1: disable it from Windows 11

1. Press Win + I to open the Windows Settings.
2. Go to Privacy & security.
3. Open Windows Security.
4. Click Device security.
5. Open Core isolation details.
6. Find Memory access protection and turn it Off.
7. Confirm the change with your administrator password or PIN if Windows asks.
8. Restart your PC.

Method 2: disable it from the BIOS

Use this method if the Windows option is missing or locked, or if Kernel DMA Protection is still enabled after restarting.

1. Restart your PC and enter the BIOS.
2. Look for one of the options below. Its exact location depends on your motherboard manufacturer.
3. Disable it and save the changes.

Any of these options controls the same feature:

Disable whichever one your system has and save the BIOS changes.

Check after restarting

Press Win + R, type msinfo32 and confirm that Kernel DMA Protection is disabled.