I recently changed from MBR to GPT and now my system takes over an hour to boot. I suspect a partition arrangement problem. I'm running Windows 10 on a RAID 5 array. Here is my current partition setup:
I used AOMEI to do the conversion, and for some reason it appears the system partition was placed at the end instead of the beginning of the disk. The first FAT16 partition is apparently a Dell Utility Partition. I don't want to disable my hardware diagnostics if possible but I may have to. How can I remediate this problem so my system will boot properly? It doesn't appear that AOMEI will allow me to move the FAT32 partition. Can I move things around and recreate it at the beginning of the drive? This post suggests that my partitions should be arranged differently. To execute this, I suspect I will have to:
1. Resize Partition 3 to provide working room 2. Move Partitions 2 and 3 to the right, leaving unallocated space at the beginning of the drive and delete partition 1 3. Create a new 100mb EFI FAT32 system partition at the 1024kb offset 4. Delete the existing FAT32 system partition at the end of the drive 5. Create an MSR partition of 128mb at 103424.
Optionally, to reclaim unallocated space, move the other partitions back all the way to the left and expand C back to the end. Is this correct? Probably best to do this through diskpart?
11-28-2015: I contacted AOMEI and they responded with this:
"The problem should be unrelated to the order of these partitions. We guess it might be RAID5. Maybe you may try to repair system via WinPE or system installation CD."
Please Note that the system was running fine on RAID 5 prior to changing from GPT to MBR. Also, I already ran the repair with WinPE and that's what created the Windows Boot Manager entry in the BIOS under UEFI.