On at least one failover cluster node, Automatic Updates is configured to automatically install Microsoft updates on that node.

Combining CAU with other update methods can result in unplanned downtime or unpredictable results.

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Windows Power Shell equivalent commands The Remote Shutdown firewall rule group is also enabled by specifying the –Enable Firewall Rules parameter when running the following CAU Windows Power Shell cmdlets: Add-Cau Cluster Role, Invoke-Cau Run, and Set Cau Cluster Role.

The following example shows an additional method to enable automatic restarts on a cluster node.

For more information, see Install the Failover Clustering feature and the Failover Clustering Tools in this topic.- Ensure that the Cluster service (clussvc) is started on all nodes in the cluster, and it is configured to start automatically.- Check that the Validate a Configuration Wizard can successfully run on the failover cluster.

For more information, see Install the Failover Clustering feature and the Failover Clustering Tools in this topic.

Many of the tests check the environment for readiness to apply Microsoft updates by using the default plug-in, Microsoft. You may need to independently validate that your cluster environment is ready to apply software updates by using a plug-in other than Microsoft. If you are using a non-Microsoft plug-in, contact the publisher for more information.- Check the spelling of the name of the cluster specified during the BPA run.- Ensure that all nodes of the cluster are online and running.- Check that the Validate a Configuration Wizard can successfully run on the failover cluster.

One or more failover cluster nodes are not enabled for remote management by using Windows Management Instrumentation (WMI).

For more information about plug-ins, see CAU: How Plug-ins Work.

CAU requires an installation of the Failover Clustering feature and the Failover Clustering Tools.

To enable self-updating mode and certain CAU features in remote-updating mode, . NET Framework 4.5 Features, use the Add Roles and Features Wizard in Server Manager.

NET Framework 4.5 must be installed on all cluster nodes. For more information, see Install or Uninstall Roles, Role Services, or Features.

We recommend that when you begin to use CAU to apply updates with the default Microsoft.