![]() ![]() Full owner authorization in TPM 1.2 is similar to lockout authorization in TPM 2.0. Some TPM-based applications may require that this setting is changed before features that depend on the TPM anti-hammering logic can be used. This setting is appropriate for scenarios that do not require you to reset the TPM anti-hammering logic or change the TPM owner authorization value. With this setting, you can use the TPM without requiring remote or external storage of the TPM owner authorization value. You can choose a value of Full, Delegate, or None.įull This setting stores the full TPM owner authorization, the TPM administrative delegation blob, and the TPM user delegation blob in the local registry. There are three TPM owner authentication settings that are managed by the Windows operating system. Reset/change Dictionary Attack Protection Certain authorization values are required in order to allow Windows to perform certain actions. This policy setting configured which TPM authorization values are stored in the registry of the local computer. ![]() For TPM 1.2, it means discard the Full TPM owner authorization and retain only the Delegated authorization. For TPM 2.0, a value of 5 means keep the lockout authorization. This value is implemented during provisioning so that another Windows component can either delete it or take ownership of it, depending on the system configuration. Beginning with Windows 10 version 1703, the default value is 5. ![]()
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