Windows – Installing windows 7 on Imac

bootbootcampoptical-drivewindows

I have a mid-2010 27" iMac with macOS 10.12.5 and an external DVD – USB SuperDrive (the internal DVD drive is broken).

I can't install Windows 7 from DVD with Bootcamp. After downloading support software to USB flash drive via BootCamp Assistant, I get an error on restart:

No bootable device — Insert boot disk and press any key.

What can I do?

Best Answer

You need to convert it to an ISO. Apple's official guide