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Chapter 9 Preserving the State of a Virtual Machine
Restore an Earlier State from a Snapshot
Restore a snapshot in Workstation by using the Revert and Go to commands. The Revert command has the same effect as using the Go to command and selecting the parent snapshot of the virtual machine. It reverts to the parent snapshot of the current state. This state corresponds to the You Are Here position in the snapshot manager. See “Snapshot Relationships” on page 204. The Go to command is not limited to the parent snapshot of the current state. You can choose any existing snapshot of the virtual machine. CAUTION If you add an independent disk to a virtual machine and take a snapshot, reverting to the snapshot will not affect the state of the independent disk.
But if you take a snapshot of a virtual machine and then add any kind of disk, reverting to the snapshot will remove the disk from the virtual machine. If associated disk (.vmdk) files are not used by another snapshot, the disk files are deleted.
To restore an earlier state from a snapshot
Do one of the following:
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To revert to the parent snapshot, choose VM > Snapshot > Revert to Snapshot.
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To revert to a snapshot that is not the parent, choose VM > Snapshot and select the snapshot name. 
To set the virtual machine to revert to the parent snapshot every time the virtual machine is powered off, see “Revert at Power Off” on page 211.
NOTE The list of snapshots in VM > Snapshot does not show an AutoProtect snapshot until you restore that snapshot in the snapshot manager. Use the snapshot manager (VM > Snapshot > Snapshot Manager) to display and restore AutoProtect snapshots. Revert at Power Off
You can set the virtual machine to revert to the parent snapshot any time it is powered off. The parent snapshot of a virtual machine is the snapshot on which the current state (the You Are Here position) is based. To set a virtual machine to revert to a snapshot at power off
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Select the virtual machine. 2
Choose VM > Settings. VMware, Inc.
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