Hi MuddyMayor-5788,
Thank you for posting in Microsoft Q&A forum.
1,How many computers are facing this issue? Does your USB media work on other computers?
2,When it reboots, unplug the install media to have a try and it should boot from your internal drive, the boot order must have the install media at a higher priority.
Thanks for your time. Have a nice day!
Best regards,
Simon
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