What should I do if the Win10 system preview version does not match?

After Microsoft released the Win10 system technology preview version, many small partners can't wait to install the experience, but some friends reacted that the system could not complete the activation after installation. When entering the Microsoft released product key, it will prompt “This key cannot be used to activate this version. Windows. Please try another key & rdquo; as shown below.

This is because the Windows 10 Technology Preview image released by Microsoft actually contains two versions: Windows Technical Preview and Windows Technical Preview for Consumer. The key is for the technical preview. The figure below shows the version information viewed with the Dism image deployment and management tools.

If you start the installation from the downloaded image, for example, write the ISO image to the USB flash drive to boot from the USB flash drive or run setup.exe directly, the installer will automatically select the installation technology preview version, which will be automatically installed after installation. Activation, no need to manually enter the product key; if you use a third-party shortcut installation tool, you must pay attention to the version when installing.
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However, friends who have installed the consumer technology preview version do not need to re-install, we can directly in the consumer The Technology Preview uses the system's built-in unlock feature to upgrade it to a technical preview. Here's how:
1. Open the Control Panel (viewed as a small icon), find and open “Add functionality to Windows Technical Preview for Consumer”.

2. Select “ I have purchased the product key & rdquo;.

3. Then enter Microsoft's public technology preview key: NKJFK-GPHP7-G8C3J-P6JXR-HQRJR, the next step after successful key verification.

4. Because the upgrade method is only unlocking the function and does not need to be reinstalled, it only takes a few minutes to complete the upgrade process.