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How to change TPM lockout settings for Windows Hello or BitLocker?


mfessler

Question

Hello everyone,

Has anyone ever successfully changed the TPM lockout settings?

Group Policy:
Computer Configuration > Administrative Templates > System > Trusted Platform Module Services
Standard User Lockout Duration
Standard User Individual Lockout Threshold
Standard User Total Lockout Threshold

Source: https://learn.microsoft.com/en-us/wi...ge-tpm-lockout

The corresponding registry settings:
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\TPM]
StandardUserAuthorizationFailureDuration
StandardUserAuthorizationFailureIndividualThreshold
StandardUserAuthorizationFailureTotalThreshold

I tried it with Windows Hello - but changing the settings did not affect the default values.
According to PowerShell "Get-Tpm": LockoutHealTime: 2 hours, LockoutMax: 32.

Does something else need to be configured somewhere?
Thanks and regards,
Martin

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