Windows 10 now has a new USB install tool which is supposed to work with UEFI. It is the Windows 10 Media Creation Tool.
It can also be accessed from Microsoft’s Windows 10 page.
Original post below:
If you’ve tried installing Windows in the recent past (since Windows 7), you’ve likely gone the install from USB flash drive route. It is faster and more convenient than DVD, and sometimes necessary as many smaller laptops and hybrid tablets don’t have optical drives. Likely you’ve used the very simple (if now somewhat anachronistically named) Windows 7 USB/DVD Download tool (found HERE). This tool – which works for Windows 8, Windows 10, as well as Server 2008 or Server 2012 and later – creates a bootable USB flash drive and copies the install files from the Windows boot ISO.
All is good if you’re using a legacy BIOS or hybrid BIOS/UEFI. The challenge is when you use a UEFI only. The USB flash drive created by this tool likely will not be recognized as a bootable device by the UEFI boot process. Yay for new and improved technology.
I recommend using the Rufus program with the excellent steps provided by Windows Eight Forums here.
Warning: The first time I did this I followed the instructions and set the file type to FAT32, which is basically required for UEFI to load the drivers needed to boot and install Windows. However, upon selecting the ISO I wanted to use, it changed the file type back to NTFS. I didn’t notice this. I made the drive, went to boot, and nothing. Still didn’t recognize the USB flash drive as a bootable device. When I put the USB stick back into my laptop, I noticed it was NTFS formatted. Odd – I know I selected FAT32 as per the instructions. When going through the creation process again, I saw it make the change.
So make sure after you select the ISO to use for the USB install drive creation that you re-select FAT32 as the format option.