How To Fix The LSA Protection Error On Windows?

How To Fix The LSA Protection Error On Windows?

Windows has a crucial security feature called LSA protection that stops unauthorized access to system resources. This error message can be brought on by damaged PC files or virus infections. Additionally, it could happen if antivirus apps unintentionally delete system data and creates instability.

This issue typically occurs when Windows tries to activate Local Security Authority (LSA) protection but is unsuccessful. In rare circumstances, the error could even display after you restart your computer and enable LSA protection. It implies a fundamental issue that must be fixed to restore system security. These remedies can be useful if you experience the same issue.

Best Methods to Fix The LSA Protection Error On Windows

Method 1: Scan For Malware

Infections with malware might damage system data and stop LSA from functioning. Make the following checks to see if your PC contains any harmful software.

Step 1: Press Win + S to open Search box.

Step 2: Enter “Windows Security” into the search box and click the result under best match result.

Step 3: Go to Windows Security and select Virus and Threat prevention tab from the left pane.

Step 4: Click on the Scan options.


Step 5: Choose Full Scan, then select Scan Now.

Step 6: Hold off until the scan is finished. Windows Security can automatically uninstall any malicious app and delete unsafe files from your machine if they are found.

Method 2: Modify Group Policy Settings

Now if the aforementioned measures don’t work, you might have to manually configure LSA. Making a few changes to the Local Group Policy Editor and altering a few particular settings are required.

Step 1: Hit Win + R to bring up the Run box.

Step 2: In the text box, type gpedit.msc and press Enter.

Step 3: On the left side of the Local Group Policy Editor, click on Computer Configuration and go to the below-mentioned path.

Administrative Templates > System > Local Security Authority

Step 4: Locate and double-click on Configure LSASS to run as a protected process in the right pane.


Step 5: Click on the radio button next to Enabled.

Step 6: Now go to the Options and look for Configure LSASS to run as a protected process.


Step 7: Select Enabled with UEFI Lock from the dropdown menu.

Step 8: Click on Apply and then on OK.

Step 9: Restart Your PC and see if the issue has been resolved.

Method 3: Make Changes In Registry Editor

You can also change the Local Security Authority values in the Registry Editor. Before making any changes, make a backup of the Windows Registry data.

Step 1: To access Run command, use the keyboard shortcut Win + R.

Step 2: In the text space, type regedit and press Enter.

Step 3: If the UAC window appears, select Yes to accept the request.

Step 4: Go to below mentioned key in Registry Editor window:


Step 5: Locate RunAsPPL in right panel and click twice on it.


Step 6: Alter Value data to “2”.

Step 7: Now locate RunAsPPLBoot in the right pane and change the Value data to “2”.

Step 8: Exit Registry Editor and reboot your PC.

Method 4: Reset Windows Security Application

Windows Security is integral part of the Windows operating system and is in charge of checking your system for malware and deleting it. This error could occur if Windows Security program is malfunctioning. Reset app to try and solve the problem. This is how you do it:

Step 1: Hit Win + I to access system settings.

Step 2: On the window’s left side, click Apps.

Step 3: On the right side, select Installed Apps.

Step 4: In the list of apps, click on Windows Security.

Step 5: Now pick Advanced settings by clicking the three dots symbol next to Windows Security.

Step 6: Scroll down until you locate Reset section.


Step 7: Click on the Reset button and reboot your PC.

The Final Word On How To Fix The LSA Protection Error On Windows?

Protection from the Local Security Authority prevents access to PC resources, including passwords and other sensitive data. However, the LSA Protection Error may prevent this functionality from functioning as intended. This problem can be solved with the best resolutions described in this article.

Please let us know in the comments below if you have any questions or recommendations. We would be delighted to provide you with a resolution. We frequently publish advice, tricks, and solutions to common tech-related problems.

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