02-22-2018, 05:59 AM
Dear Hasleo Team and Fellow WinToUSB Users,
I have got a rather strange problem:
I successfully installed Windows 8.1 Pro onto a Samsung Fit 128GB USB. I intend to use this as a bootable on the go Windows drive.
I installed all necessary drivers with BootCamp and got to run Windows 8.1 on my MacBook Pro 13" Late 2013 (retina).
Now to the problem: Everytime I shut down the MacBook Pro and try to boot (MBR) from the Samsung fit again I get the "no bootable device - insert boot disk and press any key" message right at the startup.
BUT! when I then try to boot from the same USB drive on my iMac 27" Late 2012 (FusionDrive) I can successfully boot Windows. After shutting down from my iMac, going back to my MacBook I can boot as well on my MacBook Pro. But when I shut down on my MacBook and try to reboot I am again prompted with the "no bootable device" message. WTF?!
I am pretty clueless about what to do next. I tried reinstalling Windows 8.1 and got the same result.
Just to sum up my problem:
Boot from USB on MacBook Pro --> no bootable device
Boot from USB on iMac --> Windows boot perfectly
Boot from USB on MacBook right after iMac boot --> Windows boot perfectly
Boot from USB on MacBook again after shutting down --> no bootable device
I do not want to EFI boot (cause that doesn't work unless you shut down system integrity)
The Windows Installation does completely work on said MacBook
I am very very thankful for every advice you can give me!
I have got a rather strange problem:
I successfully installed Windows 8.1 Pro onto a Samsung Fit 128GB USB. I intend to use this as a bootable on the go Windows drive.
I installed all necessary drivers with BootCamp and got to run Windows 8.1 on my MacBook Pro 13" Late 2013 (retina).
Now to the problem: Everytime I shut down the MacBook Pro and try to boot (MBR) from the Samsung fit again I get the "no bootable device - insert boot disk and press any key" message right at the startup.
BUT! when I then try to boot from the same USB drive on my iMac 27" Late 2012 (FusionDrive) I can successfully boot Windows. After shutting down from my iMac, going back to my MacBook I can boot as well on my MacBook Pro. But when I shut down on my MacBook and try to reboot I am again prompted with the "no bootable device" message. WTF?!
I am pretty clueless about what to do next. I tried reinstalling Windows 8.1 and got the same result.
Just to sum up my problem:
Boot from USB on MacBook Pro --> no bootable device
Boot from USB on iMac --> Windows boot perfectly
Boot from USB on MacBook right after iMac boot --> Windows boot perfectly
Boot from USB on MacBook again after shutting down --> no bootable device
I do not want to EFI boot (cause that doesn't work unless you shut down system integrity)
The Windows Installation does completely work on said MacBook
I am very very thankful for every advice you can give me!