How To Upgrade Windows 7 RC To RTM
Posted August 8, 2009 – 2:45 pm in: Windows 7 TweaksWith the release of Windows 7 RTM to TechNet and MSDN subscribers Windows has reached a major milestone as most of the XP, Vista, and Windows 7 RC users are moving to the finest OS ever.
If you have been running Windows 7 RC, then you might want to upgrade from Windows 7 RC to Windows 7 RTM. Although Windows 7 RC to Windows 7 RTM in-place upgrade is not supported officially, you can upgrade from Windows 7 RC to RTM with a simple trick.
If you are a XP or Vista user, you might find the following articles as useful:
How to upgrade XP to Windows 7
How to upgrade Vista to Windows 7
Here is how to upgrade from Windows 7 RC to Windows 7 RTM:
1. Extract Windows 7 RTM DVD or ISO file contents to a folder, and navigate to the following directory:
Windows 7 RTM extracted folder/sources
To extract Windows 7 files from ISO, use zip utilities like 7Zip or Winzip or WinRAR.
2. Under Sources directory, locate the file named “cversion.ini”. Open the file "cversion.ini" with notepad.
3. Modify the MinClient value from 7233 to 7000. You can enter any number less than 7233.
4. Save the "cversion.ini" file. Use any software to create ISO file. You can directly start upgrading from RC to RTM build by running setup.exe file in the root of the folder.
5. Start upgrading from Windows 7 RC to Windows 7 RTM.
Note that it’s always better to do a clean Windows 7 RTM to get better performance results.
Tags: Upgrade Windows 7 RC to RTM, Windows 7 RTM Upgrade
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25 Comments
is there anything noticably different in the RTM worth jumping over for?
Although there are no changes in RC to RTM (except default wallpaper), RTM better as far as performance is concerned.
Yes, there are lots of bug fixes that have been done in the RTM which haven’t been done in the RC. It ain’t just performance.
I also noticed that RTM has faster response times when i shut down my machine compared to RC. I think this is the best Microsoft has done to date.
I’m assuming my RC key will not work with RTM, right?
@John
Absolutely right.:)
You are right, Joe. This is the best OS till date.
Ja sam bio velika budala i išao sam skidati x64 verziju umjesto x86 jer se nisam sjetio da trenuta?no imam windows 7 RC 32bit i kao takvu je ne mogu nadograditi s 64bit verzijom. A žao mi je jer mi se ta 64bit verzija skinula za 3 sata…a ovu 32bit skidam ve? 5h i još ?e je skidati barem par dana…ciganarija prve vrste.
Wondering how could i ensure the copy i get is RTM release? How to differentiate between RC and RTM in others word?
Right-click on Computer icon and go to properties to know which version of Widnows 7 and edition you are running. You can also type winver in start menu search box and hit enter to know more about your version of Windows 7 including build details.
Thanks.. i have got the version shown as;
Version 6.1 (Build 7600)
am i getting the right RTM release of Window 7?
do you guys know if the RTM has an expiration date?
The RC expires on march 1, but… i don’t know nothing about the RTM. I got my copy from my university and i’ll install it tomorrow…
@ Alonso
RTM means Release To Manufacturing. That is, RTM is the final one. So it will not expire.
Hi, I have a question for you, my programs installed at RC will not be touched after upgrade?
@roberto
Yes. Installed programs will work fine.
Will you have a chance to enter a new product key when installing the RTM? or will it try to use the RC key?
@Jec
You need to have a RTM key.
I did this whole process..any reason why I’m still not allowed to upgrade from RC to RTM? I’m getting the “Windows 7 Ultimate cannot be upgraded to Windows 7 Home Premium.” message still, but WinClient is set to 7000.
@ Max
I think you are trying to upgrade from Ultimate to Home Premium. So, Windows doesn’t allow you to move from Ultimate to Home Premium
Getting the same error, saying can’t go from Ultimate to Home Premium. I have the RC version 7100
Hmm, I guess the RC version I have is Ultimate (are they all like this?), and it won’t let you go to a RTM version of Home Premium. Great!
Open the registry and navigate to HKLM/Software/Microsoft/WindowsNT/Current Version. Change EditionID to HOMEPREMIUM and Product name to Windows7 HOME PREMIUM. You can then upgrade RC to RMM
I need help extracting the files from the RTM disc. Can anyone help me?
Is this legal to upgrade RC this way?
@ Nate
Microsoft recommends a clean installation. But it’s legal as far as you are using the legal Windows 7 copy to upgrade from RC to RTM.;)