-| Operation failing with `WLExtPluginServiceStartTimedOut` error. | Azure Backup workload extension is unable to start the workload backup plugin service on the Azure Virtual Machine due to service account misconfiguration. | **Step 1** <br><br> Verify if **NT Service\AzureWLBackupPluginSvc** user has **Read** permissions on: <br> - C:\windows\Microsoft.NET \assembly\GAC_32 <br> - C:\windows\Microsoft.NET \assembly\GAC_64 <br> - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config. <br><br> If the permissions are missing, assign **Read** permissions on these directories. <br><br> **Step 2** <br><br> Verify if **NT Service\AzureWLBackupPluginSvc** has the **Bypass traverse chekcing** rights by going to **Local Security Policy** > **User Right Assignment** > **Bypass traverse checking**. **Everyone** must be selected by default. <br><br> If **Everyone** and **NT Service\AzureWLBackupPluginSvc** are missing, add **NT Service\AzureWLBackupPluginSvc** user, and then try to restart the service or trigger a backup or restore operation for a datasource. |
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