The virtual machine troubleshooting topics provide solutions to potential problems that you might encounter when using your virtual machines. Troubleshooting Fault Tolerant Virtual MachinesTo maintain a high level of performance and stability for your fault tolerant virtual machines and also to minimize failover rates, you should be aware of certain troubleshooting issues. Troubleshooting USB Passthrough DevicesInformation about feature behavior can help you troubleshoot or avoid potential problems when USB devices are connected to a virtual machine. Recover Orphaned Virtual MachinesVirtual machines appear with (orphaned) appended to their names. Virtual Machine Does Not Power On After Cloning or Deploying from TemplateVirtual machines do not power on after you complete the clone or deploy from template workflow in the vSphere Web Client.