I want to install Windows 7 on my Mac, which is running macOS Sierra.

I can't do this with Boot Camp, since Boot Camp only supports Windows 8 and later.

I need to boot from the USB, which I created, but I can't do it using the usual method of holding down option key while booting the Mac.

I also tried holding down shift key, nothing works, it just starts as usual.

How can I actually boot from USB and are there different keys to press in order to boot from USB or boot in safe mode in macOS Sierra?

  • To clarify, you're only holding the Option (Alt) key on startup, right? Not Option + Tab?
    – MacManager
    Oct 28, 2016 at 19:15
  • I tried both combinations Oct 28, 2016 at 19:21
  • It seems I have confused ALT / Options and TAB, while only holding ALT it works. It doesn't recognize the USB but I get to the booting menu. I think this question should be closed :/ Oct 28, 2016 at 19:25
  • No worries- glad to hear the boot picker comes up as expected.
    – MacManager
    Oct 28, 2016 at 19:55

1 Answer 1


Mac computers using macOS Sierra 10.12 support new installations of Windows 10 only. macOS Sierra does not support new installations of earlier versions of Windows.

See https://support.apple.com/en-us/HT205016 for more information.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .