*Drive will be formatted, so back up any important data on it* Launch Rufus & follow the below image and instructions:.swm files, this way, they always booted in both UEFI & MBR) The drive is ready to boot from (will be bootable in both UEFI & MBR).Copy all the files from the extracted ISO folder to the root of the pen drive.Insert the pen drive & format it as FAT32.Extract the ISO to a folder with a good archiver, such as 7zip / WinRAR.Download the required ISO : Win 8/8.1/10 / Win 7.Methods: (assumes the largest file is less than 4 GB) Once Installation or Repair is complete, you can again turn Secure Boot On, but Secure Boot disabling/enabling is not very straight forward in all UEFI firmware such as some Asus Motherboards

That way, you will need to disable Secure Boot in the UEFI firmware to boot into the media. Rufus uses a single FAT32 partition when the biggest file is under or equal to 4GB otherwise, you will only have NTFS as an option with UEFI + GPT.

SLaks way will be possible only as long as the biggest file (normally install.wim) is lesser or equal to 4GB because it uses single FAT32 partition on the boot drive.

So, the Isos, which are having files ( extracted ) larger than 4GB, has to be applied to the boot media with some tricks. But FAT32 can only support files that are less than or equal to 4GB.

Normally, UEFI boot needs a FAT32 format drive or such partition on the boot drive.

With customized ISOs, it will always be experimental and may support one or the other.

Most UEFI systems will be able to boot only 圆4 boot media in UEFI mode as here.

Burn iso image to usb stick program