Enhance Windows 11 Security with System Guard
This guide explains how to turn on System Guard and firmware protection on your Windows 11 computer. These features help keep your PC safe from the moment you turn it on.
Why use firmware protection?
Modern computers face threats that hide deep inside the system’s startup code. Standard antivirus programs cannot always see these threats. Firmware protection creates a “root of trust” that checks your computer’s health before Windows even starts. This stops dangerous software from taking control of your machine.
What happens when done?
Once enabled, your computer will verify its own firmware every time it boots up. If the system detects that something has been tampered with, it will block the unauthorized code from running, keeping your data and system files much safer.
Microsoft works with manufacturers to create specialized hardware known as Secured-core PCs. These devices come with extra layers of security built into the core of the machine.
Enable Firmware Security in Windows
If your computer supports this feature, you can turn it on through the Windows Security app.
- Open the Windows Security app.
- Go to Device security.
- Click the Core isolation details link.
- Toggle the Firmware protection switch to On.
Note: If the button is grayed out, you may need to adjust your registry settings. [Admin Privileges Required]
Navigate to this path in your Registry Editor:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\SystemGuard
Change the Managed DWORD value from 1 to 0. Restart your computer to finish.
Enable Firmware Protection via Registry
You can also use the Windows Registry editor to manage this setting. Open the Windows Registry as an administrator to begin. [Admin Privileges Required]
Navigate to the following folder path:
Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\SystemGuard
- Right-click in the empty space, select New, then DWORD (32-bit) Value.
- Name this new value Enabled.
- Double-click Enabled and set the value to 1 to turn it on, or 0 to turn it off.
Restart your computer to apply the changes.
For more technical details, visit Microsoft.
Summary
Enabling firmware protection is a smart way to lock down your Windows 11 PC. By establishing a hardware-based security check during startup, you protect your system against advanced malware that standard tools might miss. These steps ensure your computer starts in a clean, trusted state every single time.
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