If you encounter this problem, first take a lookIs it possible to switch the input method only in the Word document?.
If yes, click"File-Option".
(If you use Office 2007, click the Office button to find"Option")
In theOption"Window, click"Advanced", And then find"The input method control is active.", Select it.
Restart Word to check whether the problem is resolved.
If not only does the Word input method fail to be switched, it cannot be switched in other applications (such as Notepad. Or the shortcut keys that come with some software conflict with the system's default shortcut keys. You can change the default settings of the system. The details are as follows:
Right-click the language bar and select"Set".
"Text service and input language"Window, switch to"Advanced key settingsTab. Select an operation (for example, language switch or full-width switch), and then click"Change key order"Button to enter the custom window.
Define a set of shortcut keys based on your usage habits and save the settings.