Work in Windows Without Saving Changes

If you don't want Windows to store the changes you make to it during the working session (for example, when testing some Windows programs that may damage Windows), you can start Windows in Safe Mode:

1. Open Parallels Desktop.
2. From the Parallels Virtual Machines list select Windows that you want to start in Safe Mode and click Virtual Machine > Safe Mode .

Set Windows to Always Start in Safe Mode

If you want Windows to always start in Safe Mode:

1. Open Parallels Desktop.
2. From the Parallels Virtual Machines list select Windows and click Virtual Machine > Configure > Options > Security .
3. Choose Ask me what to do from the Undo Disks menu and click OK .

Note: If you have the automatic compression of virtual disks enabled, it will become disabled after you enable Undo Disks .