Merge pull request #17245 from alkohli/undiarc

Undo Arc registration

Author: AnnaMHuff

azure-local/deploy/deployment-arc-register-local-ui.md

@@ -5,7 +5,7 @@ ms.topic: article
 author: alkohli
 ms.author: alkohli
 ms.service: azure-local
-ms.date: 02/20/2025
+ms.date: 03/03/2025
 ---
 
 # Register your Azure Local machines via the local UI (preview)
@@ -165,6 +165,9 @@ Follow these steps to configure the network settings and connect the machines to
 
    :::image type="content" source="media/deployment-arc-register-local-ui/setup-configuration-open-in-azure-portal.png" alt-text="Screenshot that shows the Azure Arc agent setup configuration status, open in Azure portal option for Azure Local ." lightbox="media/deployment-arc-register-local-ui/setup-configuration-open-in-azure-portal.png":::
 
+> [!NOTE]
+> Once an Azure Local machine is registered with Azure Arc, the only way to undo the registration is to install the operating system again on the machine.
+
 ## Step 2: Verify machines are connected to Arc
 
 1. In the Azure portal, go to the resource group for bootstrapping.

azure-local/deploy/deployment-arc-register-server-permissions.md

@@ -57,38 +57,6 @@ Before you begin, make sure you've completed the following prerequisites:
 > [!IMPORTANT]
 > Run these steps as a local administrator on every Azure Local machine that you intend to cluster.
 
-<!-- 1. Install the [Arc registration script](https://www.powershellgallery.com/packages/AzSHCI.ARCInstaller) from PSGallery. **This step is only required if you're using an OS ISO that's older than 2408**. For more information, see [What's new in 2408](../whats-new.md#features-and-improvements-in-2408).
-
-    # [PowerShell](#tab/powershell)
-    ```powershell
-    #Register PSGallery as a trusted repo
-    Register-PSRepository -Default -InstallationPolicy Trusted
-
-    #Install required PowerShell modules in your machine for registration
-    Install-Module Az.Accounts -RequiredVersion 3.0.0
-    Install-Module Az.Resources -RequiredVersion 6.12.0
-    Install-Module Az.ConnectedMachine -RequiredVersion 0.8.0
-    
-
-    #Install Arc registration script from PSGallery 
-    Install-Module AzsHCI.ARCinstaller
-    ```
-    # [Output](#tab/output)
-    Here's a sample output of the installation:
-
-    ```output
-    PS C:\Users\SetupUser> Install-Module Az.Accounts -RequiredVersion 3.0.0
-    PS C:\Users\SetupUser> Install-Module Az.Resources -RequiredVersion 6.12.0
-    PS C:\Users\SetupUser> Install-Module Az.ConnectedMachine -RequiredVersion 0.8.0
-    PS C:\Users\SetupUser> Install-Module -Name AzSHCI.ARCInstaller                                           
-    NuGet provider is required to continue                                                                                   
-    PowerShellGet requires NuGet provider version '2.8.5.201' or newer to interact with NuGet-based repositories. The NuGet  provider must be available in 'C:\Program Files\PackageManagement\ProviderAssemblies' or
-    'C:\Users\SetupUser\AppData\Local\PackageManagement\ProviderAssemblies'. You can also install the NuGet provider by
-    running 'Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force'. Do you want PowerShellGet to install
-    and import the NuGet provider now?
-    [Y] Yes  [N] No  [S] Suspend  [?] Help (default is "Y"): Y
-    PS C:\Users\SetupUser>
-    ``` -->
 
 1. Set the parameters. The script takes in the following parameters:
 
@@ -226,6 +194,11 @@ Before you begin, make sure you've completed the following prerequisites:
 
         :::image type="content" source="media/deployment-arc-register-server-permissions/mandatory-extensions-installed-registered-servers.png" alt-text="Screenshot of the Azure Local registered machines with mandatory extensions installed." lightbox="./media/deployment-arc-register-server-permissions/mandatory-extensions-installed-registered-servers.png":::
 
+> [!NOTE]
+> Once an Azure Local machine is registered with Azure Arc, the only way to undo the registration is to install the operating system again on the machine.
+
+
+
 ## Assign required permissions for deployment
 
 This section describes how to assign Azure permissions for deployment from the Azure portal.

azure-local/faq.yml

@@ -123,6 +123,10 @@ sections:
           ------                         ----------------
           Microsoft Azure Stack HCI      23H2
           ```
+      - question: Is it possible to unregister an Azure Local machine with Azure Arc once it is registered?
+        answer: |
+          No. You can't undo the registration once you've registered the Azure Local machine with Azure Arc. To undo, you'll need to install the operating system again on the machine.        
+      
       - question: How long is Azure Local, version 22H2 supported?
         answer: |
             Azure Stack HCI, version 22H2 will reach end of support on May 31, 2025. After this date, you won't receive monthly security and quality updates. Support requests (SR) will only be available when performing an operating system upgrade. To continue receiving updates, we recommend that you upgrade your operating system to [version 23H2](./upgrade/upgrade-22h2-to-23h2-powershell.md).