COMMAND EVERYTHING.
Resets a TPM lockout.
PowerShell · Risk: High · Documentation VerifiedLast verified: 2026-10-26
Microsoft TrustedPlatformModule reference: Resets a TPM lockout. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.
Unblock-Tpm [[-OwnerAuthorization] <String>] [<CommonParameters>]Use an account with the target resource permissions documented for Unblock-Tpm. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Windows / TrustedPlatformModule · Windows Server 2025 documentation; feature/module prerequisites apply
-File (required)-OwnerAuthorizationWindows with the TrustedPlatformModule module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.
Unblock-Tpm -OwnerAuthorization "vjnuW6rToM41os3xxEpjLdIW2gA="This command resets a TPM lockout. The command specifies the owner authorization value vjnuW6rToM41os3xxEpjLdIW2gA=. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.
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