I've been unable to fresh-install Windows 10 to a GPT-partitioned disk and wonder whether any user has found a reliable way to achieve this.
1. I'm using a Z170 system with, of course, UEFI interface. My installation media is the Windows 10 installation DVD.
2. The disk that will serve as the recipient of the OS has been GPT-partitioned. I've experienced the problem I describe using a variety of disks - SSD & HDD.
3. At the beginning of the installation process a Windows message appears to the effect that 'Windows cannot be installed to a GPT disk'. So the process is terminated.
4. I've tried a number of possible workarounds but none have been successful. I installed Win 10 on a MBR-partitioned disk and then cloned the contents of the disk (on a partition-by-partition basis) to a GPT-disk. The cloned disk did retain the GPT-partitioning scheme but the disk refused to boot. When I attempted to mark the boot partition "active", an error message appears indicating "The ACTIVE command can only be used on fixed MBR disks".
5. After installing the OS on an MBR disk I used two partition management programs (their professional versions) to convert the MBR disk to a GPT disk (Paragon Partition Manager & AOMEI Partition Assistant Pro). Both programs were able to convert the disk to GPT, but once again the disk was unbootable.
So that's the problem I've encountered. If anyone out there has successfully installed the Win 10 OS to a GPT disk or was able to successfully convert a Win 10 OS installed on a MBR disk to GPT and that disk was bootable, I would certainly appreciate hearing about it, ESPECIALLY IF HE/SHE WAS PERSONALLY ABLE TO ACHIEVE THIS CAPABILITY.
1. I'm using a Z170 system with, of course, UEFI interface. My installation media is the Windows 10 installation DVD.
2. The disk that will serve as the recipient of the OS has been GPT-partitioned. I've experienced the problem I describe using a variety of disks - SSD & HDD.
3. At the beginning of the installation process a Windows message appears to the effect that 'Windows cannot be installed to a GPT disk'. So the process is terminated.
4. I've tried a number of possible workarounds but none have been successful. I installed Win 10 on a MBR-partitioned disk and then cloned the contents of the disk (on a partition-by-partition basis) to a GPT-disk. The cloned disk did retain the GPT-partitioning scheme but the disk refused to boot. When I attempted to mark the boot partition "active", an error message appears indicating "The ACTIVE command can only be used on fixed MBR disks".
5. After installing the OS on an MBR disk I used two partition management programs (their professional versions) to convert the MBR disk to a GPT disk (Paragon Partition Manager & AOMEI Partition Assistant Pro). Both programs were able to convert the disk to GPT, but once again the disk was unbootable.
So that's the problem I've encountered. If anyone out there has successfully installed the Win 10 OS to a GPT disk or was able to successfully convert a Win 10 OS installed on a MBR disk to GPT and that disk was bootable, I would certainly appreciate hearing about it, ESPECIALLY IF HE/SHE WAS PERSONALLY ABLE TO ACHIEVE THIS CAPABILITY.
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