Can’t Power on a Hosted VM? VMware’s Got You Covered…
Cruising through the KB RSS feed (http://feeds.vmware.com/p/subscribe if you haven’t already) and came across a few KB articles that help you out if your VM won’t start. This only covers the hosted products (Workstation, Server, etc.) but each one links to some good troubleshooting articles that even apply to ESX/vSphere.
Cannot power on a hosted virtual machine after a migration
Cannot power on a hosted virtual machine after it fails
Cannot power on a hosted virtual machine after changing something
and finally
Cannot power on a hosted virtual machine when nothing changed
