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Possible Duplicate:
Will it be possible to upgrade from Windows 8 Previews to the RTM version?

Is it possible to update/upgrade the windows 8 customer preview in the future to the normal version? I plan to install windows 8 in the future, but right now I want to start with preview. Can I upgrade? Or the need to raise again?

Community
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user123919
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3 Answers3

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According to Microsoft, this will not be possible. You can't upgrade to the RTM version.

Shinrai
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Seeing as how it is the preview, even if it were possible, it would not be recommended. I doubt it will be possible, as they are still working heavily on the final build. In a similar vein, why the urge to upgrade so quickly to an unproven system.

0

Upgrade from Preview to RTM works! When you get following error message you can just do below simple change.

You can't upgrade this prerelease version of Windows. Go to http://go.microsoft.com/fwlink/?LinkID=142337 to see how to install Windows and keep your files and settings.

Just change one file in the installation directory. I'm using a USB Stick to install Windows 8 and changed the file /sources/cversion.ini to

[HostBuild]
MinClient=7100.0
MinServer=7100.0

Before it was twice the value 8508.0.

Then the upgrade from a Windows 8 Preview to RTM worked without any problems. Even after some days of usage no problem discovered. But be aware - this is officially not possible, so you may have issues that aren't known so far...

FiveO
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