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Windows 7: New install of Win7 and change drive letters

13 Dec 2011   #1

Windows 7 Ultimate 32bit
New install of Win7 and change drive letters


Probably a stupid question for all you tech heads out there but its something I don't know how to do. I've tried looking at previous threads but they all got a bit too confusing and not exactly what I'm looking for. Anyway, my question is...

I already have Windows 7 Ultimate installed on one partition as C drive. I want to install Windows 7 Ultimate again on a different partition and make the new installation the C drive. I have tried to do this before but it just kept the drive letter as G.

So, how can I make the new installation C and the old one a different letter?


My System SpecsSystem Spec
13 Dec 2011   #2

Microsoft Community Contributor Award Recipient


Follow this tutorial & both windows 7 's will Drive C:
Dual Boot Installation with Windows 7 and Vista
But you will need two licence keys.

Install one:

New install of Win7 and change drive letters-install-1-001.png

Install two:

New install of Win7 and change drive letters-install-4-001.png

My System SpecsSystem Spec
13 Dec 2011   #3

Windows 7 Ultimate 32bit

Ok great, thanks for the info and pics. I'll have a go but I'm sure it will work.
My System SpecsSystem Spec

13 Dec 2011   #4
Microsoft MVP


Are you booting the installer? As long as you boot the installer Win7 will always see itself as C when booted.

If you incorrectly run the installer from another OS then that OS will hold onto C and the new install will have to take another.

How to Boot your Computer from a Bootable CD or DVD
My System SpecsSystem Spec

 New install of Win7 and change drive letters

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