Unable to power on virtual machine on VMware

Unable to power on virtual machine on VMware Symptom Virtual machine does not power on. You might see errors like: Unable to open Swap File Unable to access a file since it is locked Unable to access Virtual machine configuration Cause A known issue on VMware machines. ESX hosts lock certain critical virtual machine files and file systems to prevent concurrent changes. Sometimes the files are not unlocked when the virtual machine is powered off. When a virtual machine attempts to power on, it can not access these critical files, and the virtual machine is unable to power on. Solution See the following: VMware Knowledge Base Article