Extracted iso to a freshly formatted USB drive. All operations were successful. I can see all items in the drive in both Windows and LLOS 5.8. Macrium Reflect does not see the drive and Gparted sees the drive as unallocated. The drive was formatted in both NTFS and fat 32 with the same non bootable results. I have never had this issue before and boot LLOS 5.8 from a USB external HDD. This same USB drive had Ubuntu Cinnamon installed on it last month and it booted fine.