OS/EOS Crash Recovery

We occasionally get a 'know it all" who switches the unit off by pressing and holding the [PWR] button (and crashing the system) which has resulted in error messages on next startup. I live in fear that one night I will get a call saying the OS has failed to boot just before a show!

What can I do? Is there a way for me to make a bootable USB stick that would automatically initiate on power up and restore the OS and EOS from perhaps drive D: (like my home computer)? 

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