Just a little background first. I have a dual boot computer but left very little room for the Windows partition. I only use Windows for firmware updates from Dell and to play Fallout 4. I just bought Fallout 76 and it needed 60 freaking gigs. OMG. I only had 10 available. So I used KDE Partition Manager to move my partitions around to give Windows more space. Either I or the process screwed up and Windows was no longer bootable and I couldn't use the Dell tools to recover. So I downloaded Dell's Windows ISO file and used DD to write it to my pen drive. However, when I boot up the BIOS doesn't see it. So now I have a Windows VM and downloaded Dell's OS Recovery Tool but Windows complains that my pen drive has malfunctioned and has an invalid device descriptor. So I went back into KDE Partition Manager and changed the partition type to MSDOS and formatted it to Fat32, still gets the same error when mounting it in Windows. I have another pen drive that I cannot use for this but it mounts fine in the Windows VM. So it has to be the pen drive, not VMWare and not Windows. Anyone have any experience with using Linux to make a pen drive work in Windows? Stupid Windows doesn't even have a way to say fix it, it just refuses to work with the pen drive. Linux sees it mounted just fine.