How to upgrade Windows 7 RC to Windows 7 RTM?

Times are changing and Microsoft is upgrading the operating system Windows to one level higher day by day. Now it’s the time of Windows 7 and the version of Windows 7 RC is going to expire soon and the upgraded version of the same is Windows 7 RTM (Release to Manufacturers).

If you have already got the package of RTM and it shows you an error as below while upgrading.

“You can’t upgrade this pre-release version of Windows 7. Go online to see how to Install Windows 7 and keep your files and settings”

If you are facing the same problem then we have a trick using which you can upgrade the version of Windows 7 RC to RTM. Before getting into this trick I would like you to know how it works. When we try install Windows 7 from the DVD then there is a file which looks for the previous version of the Windows 7 and if it finds the any lower version then it will deny the installation of the same.

The below steps will guide you to upgrade the Windows 7 RC to Windows 7 RTM:

Step 1: Copy all the files from the DVD to a folder on your drive.

Step 2: Inside the folder named “Sources”

Step 3: Look for the file “cversion.ini” and open with notepad.

Step 4: Find the following lines in the file

[HostBuild]

MinClinent=7233.0

MinServer=7100.0

Step 5: Replace the number with 7233.0 with 7000.0

Step 6: Save this file.

Step 7: Now run the setup.exe

Now the Windows 7 RTM version will be installed believing that it is a non RC version. Upgrade your Windows 7 without any problems.