I was really suprised about how no one noticed that you can not UEFI boot with most PCs using 8.1.1. You have to use 8.1. I have just checked and saw that 8.1.1 has new UEFI bootloader and most of the PCs does not recognize it. Yet 8.1 boots fine with UEFI. Can I replace the UEFI bootloaders to get proper UEFI support with 8.1.1 ? To be more specific, for example, my 2014 BIOS updated Rampage IV Gene mobo can boot 8.1 USB via UEFI but can not detect 8.1.1 USB as UEFI. I can use another flash drive with Clover UEFI installed. And there I can trigger UEFI bootmgr from the USB drive which is complicated and painful
Requirements for UFD UEFI booting are: boot.wim with bootable index x64 version bootmgr.efi from x64 image bootx64.efi in efi\boot folder efi\microsoft\boot\bcd pointed to winload.efi in boot image GPT partitioned UFD Fat32 formatted primary partition on UFD
I was using WintoBootic and it was working fine with 8.1. But wih 8.1.1, I had problems. FAT32 is bulss**t. I have always used NTFS USB and it booted fine with UEFI. But Wintobootic might not support 8.1.1. I will check it out. hanks
Some of the new UEFI systems will not boot properly if not FAT32... Murphy78 gave 100% correct... works for me... Thanks Murphy78
Not mandatory, it can be MBR partitioned. Impossible without supplying additional NTFS driver for UEFI.
Ok guys. Thans for the info. Solved the problem by using Rufus. Select the second option from the dropdown list and you got it.
Some motherboard UEFIs have NTFS drivers built in. I know my MSI Z77 mobos do. But yeah, it's safe to use FAT32.
Oh my...!! This is what ALL mobos makers should do. I don't know who had the "great" idea of fat32 limitation in the first place but I want to hang him/her on the gallows