Changing To Japanese Locale On Windows 10. Select the language you want from the drop down list in the next dialog. If your Windows system uses a default en-US locale, the Japanese text in a game won't display correctly.
On the Formats tab, select a target locale from. Click the Administrative tab, and then, under Language for non-Unicode programs, click Change system locale. How do I change Windows to Japanese?
On the Formats tab, select a target locale from.
Click the [Continue] button when the user account control prompt appears.
Under Related Settings, select Additional date, time, & regional settings. Otherwise, you might see unexpected behaviors. View the System Locale settings for Windows.