Q. How do I upgrade from the Windows 7 beta to the Release Candidate?

A. There’s no officially supported way to upgrade from the beta of Windows 7 (build 7000) to the Windows 7 Release Candidate (build 7100). Microsoft developers wanted to focus on the common end user upgrade experience, which will be from Windows Vista to Windows 7, and didn’t want to waste cycles on getting a perfect upgrade experience from a beta. It is also expected that there will be no direct upgrade from the Release Candidate to the final release.

The Windows 7 RC is an early version of Windows 7 that we share with people who test it and send us feedback.

There is, however, a way you can do an in-place upgrade. This method will probably also work for an upgrade from RC to final.

  • Copy the contents of the Windows 7 RC to your local hard disk.
  • Access the Source directory within the copied Windows 7 RC location.
  • Open cversion.ini in Notepad.
  • Change the MinClient value from 7100 to 7000, as shown here:




  • Save the file.
  • You’ll now be able to perform an in-place upgrade from the beta to the RC.

Mahmoud Ibrahim (admin)

About the Author

Mahmoud Ibrahim has technology experience with over 18 years of IT industry. He'd worked in many organizations in many roles and expanded his knowledge across technology stacks, and he is enjoying sharing his expertise whenever possible :).
He is working as a presales expert in Micro Focus serving the international community.

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