Brand new PC swapped HDD 4TB showing as 2 TB win10

alankwasny

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Oct 19, 2017
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I just bought a new PC to use as a plex server. It only came with a 1TB HDD so i swapped it out with a new 4TB hdd. Fresh install of windows 10 later and im only seeing 2TB available. I have seen i need to convert the disk to GPT (its listed as NTFS now in disk management) but i can not use any of the unallocated space or format it. The PC only has one SATA port so I cant use another drive for the OS install....any suggestions? Thanks!
 
Solution
It may have defaulted to MBR due to Legacy BIOS mode, so make sure it's set for UEFI, then do as USAFRet says.

The disk needs to be initialized as GPT and while you can convert from MBR to GPT, changing it and UEFI would make WIndows no longer boot so you need to reinstall anyway.
It may have defaulted to MBR due to Legacy BIOS mode, so make sure it's set for UEFI, then do as USAFRet says.

The disk needs to be initialized as GPT and while you can convert from MBR to GPT, changing it and UEFI would make WIndows no longer boot so you need to reinstall anyway.
 
Solution