GPT Partition deleted

Wintonian

Reputable
Aug 23, 2014
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I am trying to instal 64 bit W8 on a new UEFI motherboard using a recently purchased Seagate 1 TB disk which I reformatted to NTFS ..

However I get an error message "On EFI systems Windows can only be installed to GPT disks"

Presumably my reformatting removed the GPT settings of the disk?

How do I restore the GPT setting? It would be cheaper to buy another disk than to take the OC to a dealer!