One or more virtual machines were stopped without saving the state because the virtual machine did not respond to attempts ...

One or more virtual machines were stopped without saving the state because the virtual machine did not respond to attempts to save the state. To increase the time to wait for virtual machines to respond, you can modify the registry key '%1'. However, you should only modify this key if the current timeout is too short for your environment. Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer.