Try recreating the flash drive manually:   Backup your flash drive then open a command prompt window as administrator, then type, in this order:   -diskpart -list disk -select disk x (x=your flash drive) -clean -create partition primary -format fs=fat32 label=UNRAID quick -active -assign -exit -close cmd window -Unzip Unraid release to flash drive and restore only the config folder from the flash backup -execute make_bootable as admin
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