How to Fix Local Security Authority Protection is Off on Windows 

Do you get the message “Local security agency protection is off. Your device may be vulnerable” on Windows 11 or 10?

Local Security Authority Protection (LSA Protection) is a security feature on Windows that helps protect sensitive operating system data from unauthorized access or modification by malware.

LSA protection isolates critical LSA processes in a secure, low-privilege container to prevent other processes, including malware, from accessing them.

It is useful for preventing Pass-the-Hash attacks, in which an attacker tries to steal a user’s credentials from a compromised machine.

By isolating critical processes, LSA Protection can help prevent these attacks and provide an extra layer of security for the Windows operating system.

If you don’t enable it or if it crashes, your computer will be vulnerable.

In this guide, you will learn how to fix Local Security Authority Protection is disabled error and how to enable it in Windows 11 or 10.

How to fix Local Security Authority Protection is disabled on Windows

To fix Local Security Authority Protection is disabled on Windows, try repairing and resetting Windows Security.

You can also try changing the RunAsPPL Value to “2” in “regedit”.

Method 1: Repair and reset Windows Security

1. Search for “Windows Security” using Windows Search.
2. Right click on “Windows Security” and click “App Settings”.
3. Click the “Repair” button.
4. Click the “Reset” button.

Method 2: Change the RunAsPPL . value

Please follow these step-by-step instructions:

1. Search for “regedit” with Windows Search and open it.
2. HKEY_LOCAL_MACHINE > SYSTEM > Current Controller > Controls > Lsa.
3. Double click on “RunAsPPL” and change “Value data” to “2”.
4. Right click in an empty area > New > DWORD (32-bit value).
5. Rename the new file to “RunAsPPLBoot”.
6. Double click on “RunAsPPL” and change “Value data” to “2”.
7. Restart your computer and the problem should be fixed!

If you still see the error message, you need to change the value data of “RunAsPPL” and “RunAsPPL” to 1.

Alternatively, you can uninstall the latest Windows update.

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Categories: How to
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