2023-07-09 15:08:54
July 10, 2023 Windows Update In Windows 11, “Local Security Authority / LSA” may not be enabled depending on the environment. This article will show you how to enable “Protect Local Security Authority”. First of all, regarding “Protect Local Security Authority”, until April 2023, “Settings” → “Privacy and Security” → “Windows Security” → Select “Open Windows Security” → “Device Security” → ” I was able to set it from “Details of core isolation”, but following April 2023, the setting screen is no longer displayed. After April 2023, this screen is no longer displayed. However, it is running in the background. To check if it’s running in the background, open Event Viewer, go to Windows Logs > System, and see “LSASS.exe was started as a level 4 protected process. ” (Source: Wininit / Event ID: 12), the protection is working. If there is this item, there is no problem if there is the above item that is working properly in the background, but depending on the environment, there may be no above item and it is not working in the background. If the above item does not exist, set the registry and restart the PC to enable “Protection of Local Security Authority”. The procedure for setting the registry is as follows. Start Registry Editor (Press[Windows]+[R]keys, enter “regedit” and enter) Open “HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsa” Check if there is “RunAsPPL” on the right side. If not, right-click on the right side, select New → DWORD (32-bit) Value, type RunAsPPL, enter, double-click RunAsPPL, and select Value data (V)” and enter “2”[Key]HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsa[DWORD]RunAsPPL[Value]2 If you restart the PC, “LSASS.exe has Launched as a process protected at level 4.” (Source: Wininit / Event ID: 12) should appear and “Protect Local Security Authority” should be enabled. If this doesn’t work, add a DWORD called “RunAsPPLBoot” and set the value to “2”.[Key]HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsa[DWORD]RunAsPPLBoot[Value]2 After restarting the PC, “Protection of Local Security Authority” should be enabled.
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