How to overcome system language restrictions during Win10 upgrade installation?

By default, Microsoft does not allow upgrades and installations between different language versions of the system. For example, when you run the Chinese version of Windows 10 installer directly on the English version of Win10, the upgrade installation cannot be completed. However, we can force the system to complete the upgrade by modifying the registry and retain the software and applications in the original system. The detailed method is as follows:

It should be noted that this method is not recommended by Microsoft and may cause system abnormalities. In a production environment, it is recommended to install a language pack to implement language switching.

Note:Since you need to modify the registry, it is recommended to create a restore point for your system according to "Win10 How to Create a Restore Point and System Restore Complete Guide" before operating so that you can restore it in case of an error.

1, press Win+R to open Run, enter regedit and press Enter to open the Registry Editor;

2, expand the following locations:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlNlsLanguage

3. Find the registry key value named InstallLanguage at the bottom of the right side. This key value represents the display language of the system. All we have to do is modify it to the system language code we want to upgrade to, as shown in the figure below:

For example, if the existing system is in English and the system you want to upgrade to is in Simplified Chinese, change it to 0804. On the other hand, if the existing system is in Chinese and you want to upgrade to the English version, change it to 0409. The language codes of different countries or regions can be viewed here.

4, restart the system, and then try to upgrade without failure.