I stumbled upon this thread with the same problem as everyone else with no solution. After searching and trying different methods, I have found one that works for me. To be clear, I had the Windows 10 Technical Preview running on a Surface Pro 3. Below are the steps that I took and the resources I followed:
Note: Please read through all of this before trying anything! I am not responsible for any mishaps!!!!
1. Create a bootable UEFI USB drive - followed steps from Create bootable USB for UEFI | Windows 8 content from Windows IT Pro . I will repeat them here.
a. run diskpart.exe in elevated mode
b. list disk
c. select disk <#>
d. clean
e. create partition primary <size=8192>
(the article didn't specify size, but I received an error before manually setting the size when formatting (using a 64GB USB))
f. select partition 1
g. active
h. format quick fs=fat32
i. assign
j. exit
2. Mount the iso and copy the files to the USB drive
3. Turn off the Surface
4. Hold volume down and tap the power button
5. Boots to USB
6. Profit!
Turns out I found a thread with all of this in one spot after typing this! No big deal. Option 2 is nearly identical to what I found and listed before.
http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html
Note: Please read through all of this before trying anything! I am not responsible for any mishaps!!!!
1. Create a bootable UEFI USB drive - followed steps from Create bootable USB for UEFI | Windows 8 content from Windows IT Pro . I will repeat them here.
a. run diskpart.exe in elevated mode
b. list disk
c. select disk <#>
d. clean
e. create partition primary <size=8192>
(the article didn't specify size, but I received an error before manually setting the size when formatting (using a 64GB USB))
f. select partition 1
g. active
h. format quick fs=fat32
i. assign
j. exit
2. Mount the iso and copy the files to the USB drive
3. Turn off the Surface
4. Hold volume down and tap the power button
5. Boots to USB
6. Profit!
Turns out I found a thread with all of this in one spot after typing this! No big deal. Option 2 is nearly identical to what I found and listed before.
http://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html