Common issue while installing windows 10 bootcamp

[edenbensal]

I've Mac mini 2012 with fusion drive on 10.11.6
I've downloaded windows 10 ISO file from Microsoft website
I opened boot camp app and put my usb 3 sandisk drive and through by the wizard and then the mac did restart and showed the message "no bootable device- insert disk and press any key"
I saw this error is common on google but I didn't found the specific solution for me.
What should I do?
Thank

 

[casperes1996]

To be honest, I've had and solved this problem maybe 5 times at this point, and I always forget what I do. I just mess around with it for ages!
For starters, try holding Option while booting, and try booting from both the EFI and non-EFI version. Report back if there are issues with both.

 

[edenbensal]

To be honest, I've had and solved this problem maybe 5 times at this point, and I always forget what I do. I just mess around with it for ages!
For starters, try holding Option while booting, and try booting from both the EFI and non-EFI version. Report back if there are issues with both.

Actually I deleted the partition using boot camp. So maybe I will try to install it again?

 

[casperes1996]

Actually I deleted the partition using boot camp. So maybe I will try to install it again?

One through BootCamp again,, and if it reports an error again, do the above – You don't have more partitions or drives attached to the Mac than the Macintosh HD and the BootCamp Partition, do you?

 

[edenbensal]

One through BootCamp again,, and if it reports an error again, do the above – You don't have more partitions or drives attached to the Mac than the Macintosh HD and the BootCamp Partition, do you?

I've tried to install the windows 10 again via bootcamp with another usb thumb drive (usb 2) and it still shows the same message. and no there is nothing connected to my mac beside the thumb drive.

 

[casperes1996]

I've tried to install the windows 10 again via bootcamp with another usb thumb drive (usb 2) and it still shows the same message. and no there is nothing connected to my mac beside the thumb drive.

Did you try the thing were you hold Option on boot up and try both versions of the installer?

 

[edenbensal]

Did you try the thing were you hold Option on boot up and try both versions of the installer?

Ok so it worked. I have 3 option mac, windows or boot efi.
I choose windows and the installation is happening right now.
Why it's didn't work at the first place?
Thank you!

 

[casperes1996]

Why it's didn't work at the first place?

The way Microsoft makes their installers and Bootcamp works.
Windows makes both an installer for modern EFI systems and one for classic BIOS systems. Now when you make an installer for a USB like this, it'll print both versions onto the USB. Bootcamp however, prepares the Mac for "The least common denominator" so to speak, and readies the Mac to emulate a classic BIOS system and readies it up with a Master Boot Record. When it reboots to install Windows however, the BootCamp app has obviously given control back to the firmware, since rebooting happens as a meta action that doesn't care about apps and OS. The firmware sees both an EFI booster and a classic booster, and thinks "I'm a modern EFI machine. I'll pick the EFI installer", but BootCamp had prepared for the other one. It's a bit of a mess and there should be ways of addressing it, but as of now that's how it is

 

[edenbensal]

The way Microsoft makes their installers and Bootcamp works.
Windows makes both an installer for modern EFI systems and one for classic BIOS systems. Now when you make an installer for a USB like this, it'll print both versions onto the USB. Bootcamp however, prepares the Mac for "The least common denominator" so to speak, and readies the Mac to emulate a classic BIOS system and readies it up with a Master Boot Record. When it reboots to install Windows however, the BootCamp app has obviously given control back to the firmware, since rebooting happens as a meta action that doesn't care about apps and OS. The firmware sees both an EFI booster and a classic booster, and thinks "I'm a modern EFI machine. I'll pick the EFI installer", but BootCamp had prepared for the other one. It's a bit of a mess and there should be ways of addressing it, but as of now that's how it is

Thank you!
Do you have any idea why the performance is not so good? It's not working smoothly.
My Mac mini has good processor (i7 3720qm) and fusion drive hdd.

 

[casperes1996]

Do you have any idea why the performance is not so good? It's not working smoothly.

I assume you're only having performance problems with storage accesses?
Fusion Drives are brillant, and offer great performance, however, when you make a Boot Camp partition, it'll be installed to the HDD and the HDD only. Furthermore, it's not even necessarily on a very fast portion of the HDD, depending on where data is on the HDD when you install Windows.

Just to clarify, you only meant performance was low with Windows, right?
The above is the most likely reason, but if it's slow aside from storage tasks, tell me and I'll give other hypotheses.

Only solution for the above, if storage speed on Windows is important to you, is to install Windows on an external SSD or "unfuse" the Fusion Drive, and install Windows to the internal SSD, however, eliminating the point of the Fusion Drive under macOS

 

[edenbensal]

yeac actually the mac os works perfect only the windows on the bootcamp works very slowly.
thanks for your help