I recently purchased a P300 Toshiba 3tb hard drive for my old gaming rig to upgrade the storage so it could be used to store music and such. I have been trying to clone my old 500gb hard drive to the new drive using Macrium (which supports GPT). During all my experimentation I have found that my real windows 8.1 64 bit install disk will just not work with this drive if its GPT (except it did once, more on that later). I have tried changing all the boot options in my bios from CSM off and on to only UEFI and only Legacy boot modes. I have completely de-activated then re-activated my drive using diskpart, launched my install disk, and every time I try to create a new format it creates a MBR disk leaving 750gb un-usable. Now the weird thing with this is I did this same thing once and the drive did format as GPT but after trying to clone some files I needed to do a fresh re-install and I cannot get it to format back to GPT. When I try formatting my drive before I launch the boot disk windows gives me an error that it cannot install on the drive because its of the GPT style. So far I have tried everything I can think of including updating my bios. I really need help with this.
Hardware
FmA88x+ killer
A10-6800k
Toshiba P300 3tb HDD
GTX 660
Hardware
FmA88x+ killer
A10-6800k
Toshiba P300 3tb HDD
GTX 660
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