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I am upgrading from Windows Vista to Windows 7, and the installation process has gone into a loop during the "Expanding Windows Files" step. It is 17% through that step, and just alternates between a message saying "378 of 2224 MB installed" and one saying "please wait."

I would like to save my old files if possible.

Any idea why it may have hung or advice on what to try?

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See this for backing up your data, it may be in the original location, but more than likely it is in a folder called windows.old


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I would also suggest checking your install media. The disk may be scratched. – Velociraptors Jul 2 '10 at 3:59

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