Try to set region, but doesn't seem to work

answer_files/10_insider/Autounattend.xml

@@ -49,6 +49,13 @@
                 </OSImage>
             </ImageInstall>
         </component>
+        <component name="Microsoft-Windows-International-Core" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+            <InputLocale>en-US</InputLocale>
+            <SystemLocale>en-US</SystemLocale>
+            <UILanguage>en-US</UILanguage>
+            <UILanguageFallback>en-US</UILanguageFallback>
+            <UserLocale>en-US</UserLocale>
+        </component>
         <component xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="Microsoft-Windows-International-Core-WinPE" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS">
             <SetupUILanguage>
                 <UILanguage>en-US</UILanguage>