Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Bootcamp: "Your bootable USB drive could not be created"

NervousFish2

NervousFish2

macrumors 6502
Original poster
Mar 23, 2014
364
664
Gentle people,

I am getting this message, "Your bootable USB drive could not be created," when I try to set up a bootcamp installer, in Bootcamp Assistant.

I have a 2017 iMac "27 inch. I am using 32 gb USB 3.0 drive, formatted in MS-DOS (FAT) with a "Master Boot Record" scheme.

I understand (from various internet searches) that this message was common a few years ago, when people were working from CD installers. But I am working from an ISO downloaded directly from Microsoft. I did try an experiment, and I can get Parallels to install. But I do need Windows to boot in Bootcamp.

If anyone has any tips, I'd be grateful.

Also, I think this is my 100th MacRumors post! Woohoo!
 
Some ISOs work and others don't; I had one from MSDN and it wouldn't accept it. As far as I can tell you need to use a "normal" ISO if you aren't already.
 
Both versions should work, as far as I'm aware. In fact, I think on some machines you need the 64-bit version.

Those are normal ISOs so it's not the same problem that I ran into. Maybe Boot Camp needs an update to handle the 1804 version...
 
Definitely stick with 64-bit. 32-bit will cap memory usage to 4 GB.

If you can borrow someone's Windows PC for a moment, I'd suggest using Microsoft's Windows 10 Media Creation tool to make the USB installer instead of going the ISO route.
 
Demigod Mac said:
Definitely stick with 64-bit. 32-bit will cap memory usage to 4 GB.

If you can borrow someone's Windows PC for a moment, I'd suggest using Microsoft's Windows 10 Media Creation tool to make the USB installer instead of going the ISO route.
Click to expand...
Thanks. Will do!
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back