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Windows 7: What is the maximum hard drive size that Win 7 Pro will support

26 Nov 2014   #1

Windows 7 Professional 64bit
What is the maximum hard drive size that Win 7 Pro will support

I have Windows 7Professional, 64bit running on an SSD 500GB drive.

My internal drives are the 500GB SSD, 2 x 1TB, and a small 150GB velociraptor. My External drives, all powered, are 2 x 1TB, 2 x 500GB, and 2 x 2TB drives.

The newest one is one of the 2 TB ones. Since adding this one, I find I cannot run it if all the others are connected as well.

I read that there is a limit to how many TB Windows 7 can support, and that it depends also whether they are internal or external.

Please can you clarify this for me. If there is a limit, I will have to move a lot of data(photos) around so as not to need to run all at once.

I have also just upgraded the power pack to 650watts,quadrail.


My System SpecsSystem Spec
26 Nov 2014   #2

Windows 10 Pro (x64)

No Windows 7 does not have a limit. Something else is limiting you, what it would be I'm not sure. Probably a limitation on the means you are connecting these external drives.
My System SpecsSystem Spec
26 Nov 2014   #3

Windows 7 Pro x64 Windows 10 Pro x64

My System SpecsSystem Spec

26 Nov 2014   #4

Windows 7 Pro 64 bit

The MBR partition type limits volumes to 2 TB. For GPT it is much larger, far beyond the largest drive currently available. I don't know if there are any theoretical limits on the number of volumes but the practical limit is drive letter availability.
My System SpecsSystem Spec

 What is the maximum hard drive size that Win 7 Pro will support

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