SBS 2003 and beyond

Aug 8 2009   7:52PM GMT

Windows 7 RC to Windows 7 RTM Upgrade.

Roger Crawford Roger Crawford Profile: Roger Crawford

Ok the title is misleading because the offical line is that you can not upgrade from Windows 7 RC to the RTM which is true kind of. I know if you call in with problems you would probably have a hard time getting support if you did that. But for those of you really wanting to try this if you do pop in your DVD and see what you get. You will get a error that this won’t happen Format and reload like a good little worker bee.

But for those of you who like to push and really have a hard time taking no you can’t do that for a answer the answer is with a little hack you can make the Windows 7 RC to Windows 7 RTM work. My favorite network Admin Randy found this little hack you do and things will go. I did the same thing with a Windows 2003 Server to SBS 2003 Server upgrade when I accidently ran the wrong version of  CD on the Source machine Prepping the Forest and Domain and had the wrong AD Version. That was a matter of editing the ini file that does the version check. Same thing here.

Copy your Windows 7 TRM install DVD over to a folder on your Drives and then go into Sources and Edit the cversion.ini and change the MinClient value to 7000. Also note that you can only upgrade to the Windows 7 RTM as that is what the RC installed. So if you are feeling like taking a chance here you go knock yourself out but if it causes problems you are on your own. That is why I have a backup of my original Vista machine before I upgraded to Windows 7 RC and now upgraded my laptop to the RTM. It worked for me and it worked for Randy but there is always that time that it won’t.

Til Later just Roger

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