Stuck with Windows 7 64 bit from the old disk HARD of SSHD migration

There are a lot of smart people on this forum - maybe you can advise me. I recently bought the Seagate 4 to Desktop SSHD ST4000DX001. I'm stuck with migration my Windows 7 64 bit and all the data from the old HDD to the SSHD.  Then I used the Windows Disk Manager to format the SSHD in GPT format (recommended by Windows). Then I used XXClone (freeware from the internet) to clone my old HDD. There was a message of XXClone who said that as the SSHD is GPT formatted, it didn't ensure that the clone is bootable. I tried to start the sshd with the clone of my operating system and data. It did not work.  Now I use the new SSHD as a secondary drive and I use the old HDD as primary bootable drive.  My motherboard is a Gigabyte GA-A55M-DS2.  It's EFI but not UEFI.  I heard that EFI support starting from the 3 TB GPT partition while UEFI support starting from much larger disks.  Is this information correct?  Does this mean I have to change the motherboard in GA-H61M-D2H-USB3 to use my 4TB SSHD to start from a GPT formatting?  Help, please.  Thank you so much.

Problem solved.  I did a fresh install of Windows 7 64 bit for my new 4 TB (format decimal numbering system) SSHD (3.63 TB in binary system).  He starts without a problem.  The cloning approach has not worked because my old HDD MBR format and it the SSHD uses the GPT format.  This means that I have to re-install my games and copy my data from the old disk to the new.  Thanks to everyone who responded to my messages.

Tags: Windows

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