We recently purchsed some of the EliteDesk 800 G2s and are having a terrible time getting them to see certain usb flash drives to boot off them. I have some PNY Turbo 3.0 drives that boot fine. I needed more, so I got some Kingston DataTraveler 100s and they wouldn't boot. Did some research and saw others were having a terrible time using them with UEFI BIOSes, so we ordered up more PNY Turbo 3.0 drives and now these new ones aren't seen, just like the Kingstons. Try the "old" PNY's and they boot.
I use RUFUS to make the bootable flash with an ISO of the HP restore disc. Did the same process on both and only the old one was listed in the Boot Menu. Has anyone else seen this? Does HP have a tool for these machines to make boot discs? They don't have optical drives so I can't run media creation software, which ironically, these come with the version that only writes to optical discs. Why would they not put the one that does USB media? Anyways, there has to be something out there that will help me make the USB drives show up and boot. This is beyond aggrivating.