If you have Windows 7 RC or Windows 7 Beta or any other pre-release leaked version then you cannot directly upgrade it to Windows 7 RTM build 7600.16385 as it is not supported by default.
Microsoft recommends Windows 7 beta or RC users to perform a clean or fresh installation of Windows 7 RTM, and use Windows Easy Transfer to save and transfer user accounts, Windows settings, program settings, personal customizations and files from current installation to newly installed Windows 7 RTM system.
When you try to upgrade to Windows 7 build 7600.16385, The setup will stop loading and give you an error message saying : You cannot upgrade this prerelease version of Windows 7. Go online to see how to install Windows 7 and keep your files and settings.
Windows 7 RTM is so build that it blocks and prevent upgrade from all pre-release versions of Windows 7 earlier than build 7233 for client edition, including Windows 7 Beta Build 7000 and Windows 7 RC Build 7100. But, perform this hack to upgrade in-place and bypass the error message.
- Extract the contents of Windows 7 RTM ISO Image to any folder or USB Disk using WinRAR.
- Find the file cversion.ini in a text editor such as Notepad.
- Modify the MinClient build number to a value lower than the down-level build. For example, change 7233 to 7000.
Original content of cversion.ini:[HostBuild]
MinClient=7233.0
MinServer=7100.0
Change it to:
[HostBuild]
MinClient=7000.0
MinServer=7100.0
- Save the File with Original name and Location.
- Continue installation with this modified setup.
- Choose “Upgrade” type installation to have in-place uprade to Windows 7 RTM ISO Gold. The version check will be skipped and bypassed.
Worked perfectly. Laptop is now running retail windows 7 like a champ
@Bruce, I am glad that it helped you. Thanks for sharing your experience.
Mr.Rohit,
Hi, I,am Ms.Kalina here. One of my freind given me windows 7 dvd. It may be a trial version. I, have installed this windows 7 pro 32bit on my computer. Then with the another key (starting 22TKD), this windows pro was updated to windows 7 ultimate. Now its asking for product/activation key. 23 days are left for activation. Buying a new product key is out of reach to me as I, am financially not settled. Could you send me a product key or suggest some way out? Personally this windows 7 is liked to me and my child.
Will this be a permanent fix, so you can have 7 for ever and ever? I really do love the changes but I’m broke and i found the torrent and this, I was wondering if its the 120 day thing or for ever
sir, can iconvert rc to rtm without rtm key
No, both are different things. There are several changes in RC and RTM. So no use of Key.
sir, i have windows 7 trial version… it keep on asking product key… but it will cost.. what i have to do
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