Prevent Template VIrtual Machines from Accidentally being Booted

Here’s a quick tip for Wednesday night:

If you have a VM you have syspreped so that you can use it as a template to create other new VM’s, set the VHD/VHDx file(s) for the VM read-only so that you won’t unsysprep (is that a word?) it by accident. I have spent many wasted minutes re-sysprepping VM’s because I accidentally booted up a template VM.

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