Since you are reading this post I assume you discovered you cannot upgrade Windows 7 RTM from Windows 7 RC1. This is because Microsoft put some checks and balances in the install code to prevent you from doing so. As with everything else this is treatable with a little surgery.
Warning:
What I am about to show comes with no warranty or guarantees. Just like modifying your registry, do this at your own risk.
The following instructions should get you through the upgrade process.
- First you need to download a copy of Windows 7 ISO file from Microsoft. You can do this either through your TechNet or MSDN account.
- Now that you have that you will need to decompress the files to a folder on your hard drive or network drive. I use PowerISO, but you can use what ever utility you are comfortable with.
- Once the files have been extracted locate the INI file entitled "cversion.ini". This should be located in the "sources" folder. Open it up in a text editing utility or Visual Studio 2008.
- Now you have to know a little about what you are doing to make this work. There is a line "MinClient". This is used by the installer when checking to see if you have a valid upgrade version. Let's change this to the value less than the build number of RC1 which is 7100. So we will change it to 7000.
- Now save you changes and close the text editor.
- Now recompress this back to an ISO file and burn to DVD.
Now when the disk runs you should get the option to do an upgrade.
No comments:
Post a Comment