Some Windows 11 users have reported that Windows Security displays a “Local security authority protection is turned off. Your device may be vulnerable to attack” warning even if the feature is enabled.
like Windows latest (Opens in a new tab) Reports, the bug in question is in Windows Defender (KB5007651), a mandatory security update that’s part of Windows 11 March 2023 update (Opens in a new tab). The Local Security Authority (LSA) is a protected subsystem that authenticates and logs users into a PC’s local system. The LSA also maintains information about all aspects of local security on the system, which is collectively known as the system’s local security policy. In short, it prevents sensitive information such as login credentials from being stolen.
You can enable LSA protection through Windows Security in Settings. However, even if you enable the feature, you may still receive a warning that it is not enabled. Below, you can see the warning you might encounter.
In response to an affected user, Microsoft Technical Support representative It said (Opens in a new tab): “There is a technical glitch in this feature, if you have turned this feature on successfully and you are prompted to restart, please note that the feature is turned on regardless of the message because this is a technical glitch that we are aware of and we are working to resolve this issue as soon as possible.”
How to stop the LSA warning error
Microsoft has reportedly started rolling out a fix. However, you may not get it right away. If you don’t want to see the LSA warning, Windows has the latest detailed steps to stop it.
1. Open Windows Registry Editor.
2. Go to ComputerHKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsa
3. Check if RunAsPPL and RunAsPBLBoot are listed. if not, Right click on the Lsa folder and create new DWORD entries.
4. Right-click on the entries and make sure their values are set to 2.
5. Restart your computer.
This fix worked when I tried it, though I can’t guarantee you’ll meet similar success. This is a screenshot after I took the above steps.
This particular bug seems more annoying than harmful, which is definitely a good thing. In the past, we’ve seen cases of Windows 11 bugs slowing down some computers, for example. Although this LSA warning error is not necessarily harmful, it can make you wonder if your computer is protected. Hopefully, the aforementioned fix will reach everyone sooner rather than later.
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