Q: No bootable device usb 2.0 macbook pro mid 2014

I have made some progress.  After not being able to boot from either drives on a windows machine, I decided to try and make a bootable usb installer from windows.  Microsoft's official boot tool didn't work, however one I made from rufus is being displayed as a boot option in mac.  When I select it, the windows installation starts but trackpad/keyboard don't work.  I am now copying the windows support drivers from the bootcamp site onto the drive to see if that enables trackpad/keyboard. 

Do you know if there is any danger to using this method?  Does bootcamp follow a different process to rufus?

So I copied the files from the download into the root of the folder, but still no trackpad/keyboard control.  Any suggestions?

I'm now going to try the files that BCA downloads instead of these that I manually downloaded, will report back.

Boot Camp Support Software 5.1.5640

Yea thats the one I had on (linked in my reply). didnt work unfortunately. I'm about to try the drivers that BCA downloads by default, although I don't have much hope.  Thereafter, I might try this virtual box method - http://apple.stackexchange.com/questions/225387/no-bootable-device-usb-2-0-macbo ok-pro-mid-2014/225404#225404 - do you think that could work?

Is windows 8 easier to install?  Seems as though it may not have the same driver issue.  I don't have a windows 8 key (well, I have a windows 7 -> windows 8 update key), but if I am able to find an original iso somewhere I will consider getting a key if I can get it installed.  This is sooo tiring, I've been on it for a week.

Will try.  What does km stand for (I'm assuming it means keyboard & trackpad). Btw, all flash disks that did not boot with BCA are booting with rufus

I've tried everything I can think of now - every combination of the windows support software on different usb disks, still when I get to the initial windows install screen I have no KM.

I found this - https://downloadcenter.intel.com/downloads/eula/25476/Windows-7-USB-3-0-Creator- Utility?httpDown=https%3A%2F%2Fdownloadm… and might later try find a way to install that onto one of the drives and give it a shot.

Is there anything else I could be missing?

I did try that but it didn't help.

In the end, I gave up and installed windows 8.1.  No hickups whatsoever!  Wish I had given up on 7 earlier.

Once again, thanks a lot for your help, appreciate it!