Now its time to find out what all has changed in this version. The first thing which I checked was my blank start menu which is not filled in completely which wasnt the case when I upgraded Windows Vista to Windows RC. Updating Minimum Client Version : Windows 7 rc to windows 7 rtm Windows 7 RC upgrade step 1 : Compatibility Check Windows 7 RC upgrade step 2 Windows 7 upgrade finish : Looking at the setup files I was able to find minclient in the same file which is located under Sources folder of the setup. If you try to do it without the change, you will get the error as below. There is a configuration file called as cversion.ini in which Minimum CLient Version or MinClient can be set to lower value than your current version. It is not possible to upgrade from RC to RTM because of the minimum build number Windows 7 RTM settings look for but this can be changed.
To avoid this when I asked few of my fellow friends they pointed me out to this That’s a good one but then I need to re install all the software and reconfigure everything. Windows 7 RTM was released few days back and most suggested option was to do a clean installation.