How to Lock Windows 11 Proxy Settings for Security
Locking Windows 11 proxy settings prevents unauthorized changes to how your PC connects to the internet, which is important for network security.
Proxy settings act like a gatekeeper for your internet traffic, telling your computer to go through a specific server before reaching websites. Locking them stops anyone from changing these settings without permission.
This is especially useful on computers used by many people or in work environments. It makes sure everyone uses the internet the way it’s supposed to be used, protecting against security risks.
Lock Windows 11 proxy settings by enabling “Prevent changing proxy settings” in the Local Group Policy Editor or by creating a Proxy DWORD value in the Registry Editor. These actions prevent unauthorized modifications to your internet connection.
Why Lock Proxy Settings?
Locking proxy settings in Windows 11 is important for security because it stops people from changing how your computer connects to the internet.
What Happens When Done?
Once you apply these steps, proxy settings in the Windows Settings menu will appear “greyed out” and locked. This prevents anyone without administrator permission from turning them off or changing the proxy configuration. This proxy setting lock is a critical step for system administrators managing proxy settings across devices.
Before You Begin
Before you lock proxy settings in Windows 11, it’s important to know that the easiest method (using Group Policy) only works on Pro, Enterprise, or Education versions.
Locking Proxy Settings via Group Policy
You can lock proxy settings in Windows 11 using the Group Policy Editor to stop unwanted changes. This tool lets you control how your computer behaves. To begin, search for 'Edit group policy' in the Start menu and open the editor.
To lock down proxy settings, open the Local Group Policy Editor by clicking the Start menu and searching for "Edit group policy." Select it from the results.

In the window that opens, follow this path on the left side:
User Configuration > Administrative Templates > Windows Components > Internet Explorer
On the right side of the Registry Editor window, find the setting named Prevent changing proxy settings. Double-click this Prevent changing proxy settings to open its configuration options.

In the new window, select the Enabled button.

Click OK and close the editor. If you ever need to change this back, follow the same steps but select Not configured instead.

Locking Proxy Settings via Registry
If you can't use Group Policy, you can still lock proxy settings in Windows 11 with the Windows Registry. This is a more advanced method. You'll need to open the Registry Editor and go to a specific path to make changes.
The Windows Registry can also be used to lock these settings. Open the Registry Editor and navigate to this path:
HKEY_CURRENT_USER\Software\Policies\Microsoft
To do this, right-click the Microsoft folder and choose New Key. Name this new folder Internet Explorer. Then, right-click the Internet Explorer folder, choose New Key, and name it Control Panel. Finally, right-click the Control Panel folder, choose New DWORD (32-bit) Value, and name it Proxy.

Double-click the Proxy value you just created. Change the "Value data" box to 1 and click OK.

Once finished, the proxy settings are locked.

Verification and Troubleshooting
After locking proxy settings in Windows 11, you can check if the changes worked by opening the Command Prompt and running a specific command.
Summary
Locking proxy settings in Windows 11 keeps your internet connection secure and compliant with company rules by preventing unauthorized changes.
Can I lock proxy settings on 🪟 Windows 11 Home edition?
Yes, you can lock proxy settings on Windows 11 Home, but you cannot use the Group Policy Editor. Instead, you must manually edit the Windows Registry by creating the specific DWORD value in the HKEY_CURRENT_USER path. Always exercise caution when editing the registry to avoid system instability.
Does locking proxy settings prevent VPN usage?
Locking your proxy settings in Windows 11 usually doesn't stop a VPN from working because VPNs use their own network connections.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
i tried both, and settings menu cannot open after the policy applied