From a00c41191788f08b732a5df03194803a782bde40 Mon Sep 17 00:00:00 2001 From: MaratMussabekov <48041687+MaratMussabekov@users.noreply.github.com> Date: Fri, 3 Dec 2021 21:19:13 +0500 Subject: [PATCH 1/2] Update change-the-tpm-owner-password.md --- .../information-protection/tpm/change-the-tpm-owner-password.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/windows/security/information-protection/tpm/change-the-tpm-owner-password.md b/windows/security/information-protection/tpm/change-the-tpm-owner-password.md index 143888e0fb..714b7ded12 100644 --- a/windows/security/information-protection/tpm/change-the-tpm-owner-password.md +++ b/windows/security/information-protection/tpm/change-the-tpm-owner-password.md @@ -30,7 +30,7 @@ This topic for the IT professional describes how to change the password or PIN f Starting with Windows 10, version 1607, or Windows 11, Windows will not retain the TPM owner password when provisioning the TPM. The password will be set to a random high entropy value and then discarded. > [!IMPORTANT] -> Although the TPM owner password is not retained starting with Windows 10, version 1607, or Windows 11, you can change a default registry key to retain it. However, we strongly recommend that you do not make this change. To retain the TPM owner password, set the registry key 'HKLM\\Software\\Policies\\Microsoft\\TPM' \[REG\_DWORD\] 'OSManagedAuthLevel' to 4. The default value for this key is 5, and unless it is changed to 4 before the TPM is provisioned, the owner password will not be saved. +> Although the TPM owner password is not retained starting with Windows 10, version 1607, or Windows 11, you can change a default registry key to retain it. However, we strongly recommend that you do not make this change. To retain the TPM owner password, set the registry key 'HKLM\\Software\\Policies\\Microsoft\\TPM' \[REG\_DWORD\] 'OSManagedAuthLevel' to 4. For Windows 10 versions newer than 1703 the default value for this key is 5. For TPM 2.0, a value of 5 means keep the lockout authorization. For TPM 1.2, it means discard the Full TPM owner authorization and retain only the Delegated authorization. Unless it is changed to 4 before the TPM is provisioned, the owner password will not be saved. Only one owner password exists for each TPM. The TPM owner password allows the ability to enable, disable, or clear the TPM without having physical access to the computer, for example, by using the command-line tools remotely. The TPM owner password also allows manipulation of the TPM dictionary attack logic. Taking ownership of the TPM is performed by Windows as part of the provisioning process on each boot. Ownership can change when you share the password or clear your ownership of the TPM so someone else can initialize it. From 7f4024717b9bfe563706ce3d41be332722414522 Mon Sep 17 00:00:00 2001 From: Denise Vangel-MSFT Date: Fri, 3 Dec 2021 08:33:06 -0800 Subject: [PATCH 2/2] Update change-the-tpm-owner-password.md --- .../information-protection/tpm/change-the-tpm-owner-password.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/windows/security/information-protection/tpm/change-the-tpm-owner-password.md b/windows/security/information-protection/tpm/change-the-tpm-owner-password.md index 714b7ded12..d499253cde 100644 --- a/windows/security/information-protection/tpm/change-the-tpm-owner-password.md +++ b/windows/security/information-protection/tpm/change-the-tpm-owner-password.md @@ -13,7 +13,7 @@ manager: dansimp audience: ITPro ms.collection: M365-security-compliance ms.topic: conceptual -ms.date: 11/30/2021 +ms.date: 12/03/2021 --- # Change the TPM owner password