LSA Error This Change Requires You to Restart Your Device - Fix It

Local Security Authority (LSA) Protection Error: A Guide to Troubleshooting the "Restart Required" Message

The Local Security Authority (LSA) protects your system from unauthorized access. However, some users encounter an error message stating "this change requires you to restart your device" when attempting to configure LSA protection. This guide provides several solutions to resolve this issue and safeguard your data.

Method 1: The Simple Restart

Before diving into complex solutions, try the simplest fix: restart your computer. This often resolves temporary glitches causing the error.

Method 2: Malware Scan

Malware can interfere with security features like LSA protection. Perform a thorough malware scan:

1. Open Settings (Win I), then navigate to Update & Security > Windows Security > Virus & threat protection.
2. Select Scan options > Microsoft Defender Offline scan > Scan now.

Method 3: Registry Editor Modification

Manually configure LSA settings via the Registry Editor:

1. Open the Run dialog (Win R) and type regedit.
2. Navigate to Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa.
3. Right-click in the right pane, select New > DWORD (32-bit) Value.
4. Create two DWORD values: RunAsPPLBoot and RunAsPPL, both with a value data of 2.
5. Restart your computer.

Method 4: System File Checker (SFC) Scan

Corrupted system files can cause this error. Run an SFC scan:

1. Search for "Command Prompt," right-click, and select "Run as administrator."
2. Execute the command: sfc /scannow

Method 5: Resetting the Security App

Resetting your security application might resolve the issue:

1. Open Settings, go to Apps > Apps & features.
2. Locate Microsoft Defender, click Advanced options, and then select Reset.

Method 6: Install Pending Updates

Outdated system files can contribute to the problem. Install any pending Windows updates:

1. Open Settings, navigate to Update & Security > Windows Update.
2. Click Check for updates.

Data Backup: A Crucial Step

A disabled LSA protection leaves your system vulnerable. Regularly back up your important data using software like MiniTool ShadowMaker to protect against data loss.

Conclusion

These methods should help resolve the "this change requires you to restart your device" LSA error. Remember, proactive data backup is crucial for maintaining data security, especially when facing system vulnerabilities.

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