How to Upgrade the Windows 7 RC to RTM

@ 2009/08/07
The final version of Windows 7 was released yesterday for MS Technet subscribers, but you can’t upgrade directly from a pre-release version—at least, not without a quick and easy workaround, and we’ve got you covered.

Windows 7 checks whether or not the current version you are running is a pre-release copy, and prevents you from upgrading further. The solution is to edit a file inside the Windows 7 DVD—which you’ll have to extract to the hard drive to proceed.

Comment from jmke @ 2009/08/07
Same workaround for upgrading Beta to RC, copy contents of install DVD to local HDD, edit cversion.ini under "sources" subfolder, change the MinClient value to 7000.0.

Quote:
The Windows 7 beta or RC releases were Ultimate edition, so you’ll only be able to upgrade to the RTM (final) if you are installing Ultimate Edition.

 

 

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