Yes I just tried to boot both USB flash drives from my sister's computer, that is known to boot all my other USB flash drives, after I changed the boot order in the bios. Also recognized as Active,Primary partitions in Disk Manager. One USB flash drive is a Sandisk ultra 32gb while the other is a Patriot 16gb. Her USB ports are USB 2.0, while all of mine are USB 3.0/3.1 Gen 1 ie 5Gbps. I can't remember if these flash drives are USB 2.0 or 3.0. I guess I'm gonna have to call Tech Support. TIA