As we all know Microsoft has released Windows 7 RC build to Connect, TechNet and MSDN subscribers and public release is set to 5th May.
Now if you have downloaded the RC build and you are trying to upgrade existing Windows 7 Beta build to RC, you'll get following error message:
Actually Microsoft doesn't recommend upgrading from Windows 7 Beta builds to RC build. So its not possible unless you hack a file "cversion.ini" present in Windows 7 RC setup folder.
So if you want to upgrade existing Windows 7 Beta build to RC build, follow these simple steps:
1. Download the Windows 7 RC ISO file and extract it using 7-Zip.
2. Now go to "Sources" folder and look for "cversion.ini" file.
3. Open the file in Notepad and you'll see following lines in the file:
4. As you can see the MinClient value is set to 7077 but the public Beta build number was 7000. So just change 7077 to 7000.
5. That's it. Save the file and run the setup.exe file again. Now it'll allow you to upgrade from Beta build to RC build.
Complete list of AskVG articlesThis article was posted in Troubleshooting, Windows 7.
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moioonode
Thanks.
Darshit
But how risky is this way to upgrade?
If MS does not recommend it, any reasons as to why not?
VG
^^ Its not risky. Actually we should always install fresh copy of such testing software for better and accurate testing. Thats why Microsoft didnt recommend it.
Tesseract
Out of curiosity, based on that number being 7077 beforehand... Does version 7077 upgrade fluidly without editing the file?
somebody
modify it to 2600 then we can upgrade fom xp
VG
^^ Not tried but most probably yes.
Amirz
Great hack VG thanks alot
VG
^^ Welcome.
VG
^^ Nope.
Grim
Has anyone actually done this, and if so have you seen any bugs or issues?