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.
This article was posted in Troubleshooting, Windows 7.
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VG
^^ You can mount the ISO image using an image mounting utility. 7-Zip can also show and extract the files.
jiron
Is it safe just to mount it on VirtualClone Drive and complete the installation
jiron
Is it safe just to mount it on VirtualClone Drive and complete the installation?
VG
^^ I think yes. But not tested.
Kunal Baraik
by any chance can the upgrade be done by just using the iso file.........as in avoiding to burn the iso on dvd
VG
^^ Of course. Extract content of ISO file using 7-Zip and then run Setup.exe file.
Fakedf
I kept this page open for 4hrs to write a gud comment after checking-out this technique....
but.......
the download of Windows 7 RC is stuck on 99%....
wat to do???
Fakedf
OK NEVER-MIND!!!....
....I figured it out.....
Feri
U know that the beta verjon restarts every two hours......
So when im half way in the upgrade the computer shuts down...... Any help Or advise that can help do the upgrade in windows!?
Fakedf
Awesum awesum awesum..........
Great work!!!.....Works like water.....