I downloaded a Windows 10 ISO installation file and used BootCamp and a 8GB USB stick to download it. When my computer restarted after the installation was complete, this message can up and I can’t do anything about it (tried holding option etc. already).
Can anyone help me with this?!
Can you run SMC and NVRAM Reset and use the Install Option in BCA to create a partition and try to install Windows?
Ok, I’ll try that. Just one question though, what is the Install option? When I did it the first time I just had all the boxes checked.
Ok. Should all the boxes be checked or only the Install Option?
Just a little update: Right now, after leaving my MAC off for a while, when I started it, a grey rotating globe came up with a loading bar, i a white screen. What does this mean?
MacOS Utilities page popped up, gave me the options to Restore from backup, reinstall macOS, get help online, or use disk utility.
??
Ok thanks! Got back on my computer, I’m going to follow Apple’s steps on how to use BCA, I’ll update you later.
So I went back on BCA, and instead of an Install option, it gave me a Remove option. Does that mean I have a Windows partition? If so, how can I use it (Windows)?
Are you on High Sierra? Can you post the output of
diskutil list
from macOS Terminal?
Yes, I am in on High Sierra. And how can I access MacOS Terminal when I can’t get into my Mac? Is there an app for it? Sorry, not too experienced with all of this.
If you reboot and hold Alt/Option key, do you see the Apple Bootmanager? If the Windows installation has failed, you can also try a NVRAM Reset and then try the Alt/Option method.
I’ve tried holding the Alt/Option key, but no Apple Boot manager pops up. Just the same old No bootable device message. I’ve also tried resetting the NVRAM, still nothing.
Run both NVRAM and SMC Reset and test if you can see the the Bootmanager using Alt/Option key.
Yes, and check if you see the boot manager.
I saw the boot manager, but I am dumb and didn’t have my USB2 plugged in. ): ....Should I restart my Mac and follow those same steps, but with my USB2 in??
Ok, I’m there again!! I see Windows and EFI Boot, which one do I click?
“No bootable device — insert boot disk and press any key”
