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Examples of Using Snapshots
Using Snapshots as Protection from Risky Changes
If you plan to make risky changes in a virtual machine (for example, testing new software or examining a virus), take a snapshot before you begin. If you encounter a problem, you can restore the virtual machine to the state preserved in that snapshot.
If your risky actions cause no problems you can take another snapshot of the virtual machine in its new state. Snapshots can minimize lost work if something goes wrong. With multiple snapshots of saved positions, you can return at any time to any important position when you discover a problem.
Starting a Virtual Machine Repeatedly in the Same State
You can configure the virtual machine to revert to a snapshot any time it is powered off. You might use this feature, for example, in setting up student virtual machines to power on for each new class at the beginning of the lesson, discarding previous student work. See Reverting at Power Off for the procedure.
Automatically Recording Milestone Status
You can configure a virtual machine to take a snapshot any time it is powered off, preserving a virtual audit trail as work progresses. See Virtual Machine Settings for Snapshots for configuring automatic snapshots at power off.