#1) Shutdown your VM guest.


#2) Right click, then Rename in Virtual Center.


#3) Right click, then choose Migrate…. Do a “cold” migration to another Datastore with enough space for your VM guest files, *.vmx *.vmdk’s, etc.


#4) After this finishes, you can move back to the original location, if you want.. — All of your VM guests files will be properly renamed.


#5) Power on your VM guest.

* Only thing you have to watch is to make sure you have enough free disk space on the Datastore you are moving to.

Thanks,
Will

Want to rename a VM guest?!? Sure you can manually edit the *.vmx, *.vmdk files — but here is an easier way: #1) Shutdown your VM guest.
 #2) Right click, then Rename in Virtual Center.
 #3) Right click, then choose Migrate…. Do a “cold” migration to another Datastore with enough space for your VM guest [...]