SSD stuck on MBR

[expede]

Hi!

I got a SSD that seems to be stuck on MBR. I try to erase it with Disk Utility, but I can not install Windows 10. The installer says " Windows can not be installed on this disk due to MBR. Windows can only be installed on GPT disk." Something like that. I tried 10 times, but no way it can be converted from MBR protocol. When I convert it/erase is to OS X Journal, it works fine. I can use it like a storage disk and I can petition it to FATex and FAT-32 and the installer can convert it to NTSF. But install Windows NO!! I tried to erase the disk with GUID and it works but when I try to install Windows 10-NO!!

Is my SSD broken? Or am I missing something?

Best regards

Per

 

[Audit13]

Which Macbook do you have? You are using Boot Camp?

 

[expede]

Hi!

Mac Pro 5.1 2012, 12-core, 28GB, ADM Radeon 7950 3GB, 27" Cinemadisplay, running on Sierra (not high)

Best regards

Per

 

[Audit13]

Are you using boot camp?

According to this article from Apple, the Mac Pro needs to be from late 2013 or newer: https://support.apple.com/en-ca/HT204990

 

[expede]

Hi!

I do use BOOTCAMP. I activate BOOTCAMP-assistance with win7-disk and at bootmenu, I change the disk to Win 10-disk. I do use separate disks for win and OS X

Best regards

Per