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I am trying to upgrade from windows 7 home basic to windows 7 professional, both 64-bit.

I ran the windows anytime upgrade, which says that my system is really compatible for an upgrade.

The upgrade runs:

asks for an upgrade key, 

prompts me to agree the terms and conditions,

continues for a few minutes, and then says it was unsuccessful. 

When it ran for the first time, it popped an error about the restore points. I corrected

them, and ran it again. This time the upgrade runs, and then pops and error, without specifying what it actually is, and provides me with a link for an on line solution.

Any help on this would be highly appreciated.

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This is not a programming question. – Michaël May 8 '12 at 12:39
AFAIR the "windows upgrade advisor" is for upgrading XP or Vista to Win7. For changing the Win7 version the "Windows Anytime Upgrade" is used. – Robert May 8 '12 at 13:32
I tried using Windows Anytime Upgrade. – user980411 May 8 '12 at 16:52

AS Robert says - from the Amazon Windows 7 Anytime upgrade blurb:

Windows Anytime Upgrade No disks, no delays. And no leaving the house: With Windows Anytime Upgrade, you can upgrade to a more advanced edition of Windows 7 in as little as 10 minutes. That way, you get to take advantage of extra features while keeping your current programs, files, and settings intact. In the past, upgrading Windows could be a bit of a hassle. In Windows 7, the software you need comes preinstalled. All you have to do is purchase an upgrade key from Microsoft or another authorized retailer to unlock those shiny new features.

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I tried using Windows Anytime Upgrade. – user980411 May 8 '12 at 16:52

Usually this particular failure to do the anytime upgrade means you do Not have Windows 7 Service Pack 1 installed, SP1 must be installed before anytime upgrade will succeed.

Use Windows Update to get it installed.

Control Panel (icon view) > Windows Update > Check for Updates

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