How to install Win7 over top of WinXP partition?

Posted by Zeno on Super User See other posts from Super User or by Zeno
Published on 2012-10-22T03:43:10Z Indexed on 2012/10/22 5:05 UTC
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windows-7

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installation

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operating-systems

I have a 2TB hard drive with 2 partitions on it, one a C drive for WinXP and another for extra space.

I have a Win7 Pro install DVD and I have formatted that C drive via the DVD; it is now a blank "Primary" partition.

I attempted to go through the Win7 setup and install it on that partition, but it's giving me an error:

Setup unable to create new system partition or locate existing system partition. See setup log files for more info

Googling around leads me to believe the entire drive has to be "cleaned" (diskpart) but that would wipe the entire other non-OS partition and I need to keep that data.

How can I install Win7 on this blank partition without losing data on the other partition?

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