LSA Package Is Not Signed as Expected Credential Guard Error
Event ID 6155.
LSA package is not signed as expected.
This can cause unexpected behavior with Credential Guard.

This error indicates that LSA is unable to recognize and authenticate a user when signing in.
Luckily, you might fix this error easily with the workarounds below.
Without wasting more time, lets dive into it now!

Here, it is strongly advisable to rely on theWindows backup software MiniTool ShadowMaker.
Some users reported that they get rid of this error by uninstalling the recent update.
Heres how to do it:
Step 1.

In the configs menu, scroll down to findUpdate & Securityand hit it.
PressWin+Sto evoke thesearch bar.
Go to the following location:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
Step 4.
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Therefore, you’re able to consider disabling this feature using the following method:
Step 1.
Locate to the following path:
Step 4.
To disable Credential Guard, double-press it and set itsvalue datato0.
Do you run into login failed error 0xc0210000 on Windows 10/11?
If yes and you are still at a loss now, then this guide is for you!