I downloaded windows 11 insider preview buils 22000 (beta channel) iso. Then i plugged in my 8gb Kingston usb and opened rufus then started to create bootable usb, suddenly rufus says an error that undetermined error while formatting. I tried many times and stil says that error. Then I tried unetbootin, it created bootable usb with ntfs file system without any errors. Then I restarted my laptop pressed F12 simultaneously, showed up boot manager and its not showing any other bootable drives except hard disk. Why is that? Please help to solve this problem.