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Description:  

This setting restricts users to the specified language by disabling the menus and dialog box controls in the
Regional and Language Options Control Panel. If the specified language is not installed on the target
computer, the language selection defaults to English.

To enable this policy in Windows Vista, you need to use "Restricts the UI languages Windows should use for
the selected user" policy.

Supported on: At least Windows 2000.
Restrict selection of Windows menus and
dialogs language
Description Gpedit Regedit CMD Back VBScript PowerShell Script
Gpedit:   

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
Type gpedit.msc and press Enter
In the Group Policy window please navigate to User Configuration -> Administrative Templates ->
Control Panel -> Regional and Language Options and open Restrict selection of Windows menus and
dialogs language
.
Not Configured -> is the Default state
Enabled -> apply this GPO
Disabled -> this GPO will not be applied

To finish press ok button and close Group Policy window.
Type regedit and press ok
Please confirm User Account Control pop-up
Microsoft official disclaimer

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by
using another method. These problems might require that you reinstall the operating system. Microsoft
cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Note: This registry key is created by Group Policy when this GPO is Enable. The GPO Default state is Not
Configured -> this registry entry is not present. For Disable this registry entry is not present.

Please navigate to HKEY_CURRENT_USER\Software\Policies\Microsoft\Control Panel\Desktop
and locate MultiUILanguageID registry key
Regedit:          

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
   
   
Double click on MultiUILanguageID and edit the value:

To Enable:
Change the data value with:
MultiUILanguageID = 00000409

Languages:

English = 00000409
Japanese = 00000411
Korean = 00000412
German = 00000407
Simplified Chinese = 00000804
Traditional Chinese (Taiwan) = 00000404
French = 0000040c
Spanish = 00000c0a
Italian = 00000410
Swedish = 0000041d
Dutch = 00000413
Portuguese (Brazil) = 00000416
Finnish = 0000040b
Norwegian = 00000414
Danish = 00000406
Hungarian = 0000040e
Polish = 00000415
Russian = 00000419
Czech = 00000405
Greek = 00000408
Portuguese (Portugal) = 00000816
Turkish = 0000041f
Arabic = 00000401
Hebrew = 0000040d
Slovak = 0000041b
Slovenian = 00000424
Romanian = 00000418
Croatian = 0000041a
Bulgarian = 00000402
Estonian = 00000425
Lithuanian = 00000427
Latvian = 00000426
Thai = 0000041e

To finish press ok button and close Registry Editor window

Note: Manual editing of this registry key will not be reflected in Group Policy. If you modify this GPO from
Group Policy this registry key will be rewritten.
Type cmd, right click on cmd icon under the Programs and click on Run as administrator
Please confirm User Account Control pop-up
Please select, right and copy a registry key from below, then right click on command prompt window
, select Paste and press Enter

Enabled:
REG add "HKCU\Software\Policies\Microsoft\Control Panel\Desktop" /v MultiUILanguageID /t REG_SZ /d 00000409 /f

Not Configured:
REG DELETE "HKCU\Software\Policies\Microsoft\Control Panel\Desktop" /v MultiUILanguageID /f

Note: Manual editing of this registry key will not be reflected in Group Policy. If you modify this GPO from
Group Policy this registry key will be rewritten.

Languages:

English = 00000409
Japanese = 00000411
Korean = 00000412
German = 00000407
Simplified Chinese = 00000804
Traditional Chinese (Taiwan) = 00000404
French = 0000040c
Spanish = 00000c0a
Italian = 00000410
Swedish = 0000041d
Dutch = 00000413
Portuguese (Brazil) = 00000416
Finnish = 0000040b
Norwegian = 00000414
Danish = 00000406
Hungarian = 0000040e
Polish = 00000415
Russian = 00000419
Czech = 00000405
Greek = 00000408
Portuguese (Portugal) = 00000816
Turkish = 0000041f
Arabic = 00000401
Hebrew = 0000040d
Slovak = 0000041b
Slovenian = 00000424
Romanian = 00000418
Croatian = 0000041a
Bulgarian = 00000402
Estonian = 00000425
Lithuanian = 00000427
Latvian = 00000426
Thai = 0000041e
CMD:          

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here
   
VBScript:          

Const HKEY_CURRENT_USER = &H80000001
strComputer = "."
Set oReg=GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & _
strComputer & "\root\default:StdRegProv")

strKeyPath = "Software\Policies\Microsoft\Control Panel\Desktop"
oReg.CreateKey HKEY_CURRENT_USER,strKeyPath
strValueName = "MultiUILanguageID"
'Enabled
strValue = cstr("00000409")
oReg.SetStringValue HKEY_CURRENT_USER,strKeyPath,strValueName,strValue
'Not Configured
'oReg.DeleteValue HKEY_CURRENT_USER,strKeyPath,strValueName

Languages:

English = 00000409
Japanese = 00000411
Korean = 00000412
German = 00000407
Simplified Chinese = 00000804
Traditional Chinese (Taiwan) = 00000404
French = 0000040c
Spanish = 00000c0a
Italian = 00000410
Swedish = 0000041d
Dutch = 00000413
Portuguese (Brazil) = 00000416
Finnish = 0000040b
Norwegian = 00000414
Danish = 00000406
Hungarian = 0000040e
Polish = 00000415
Russian = 00000419
Czech = 00000405
Greek = 00000408
Portuguese (Portugal) = 00000816
Turkish = 0000041f
Arabic = 00000401
Hebrew = 0000040d
Slovak = 0000041b
Slovenian = 00000424
Romanian = 00000418
Croatian = 0000041a
Bulgarian = 00000402
Estonian = 00000425
Lithuanian = 00000427
Latvian = 00000426
Thai = 0000041e
   
PowerShell Script :          

Enabled

$RegKey = "HKCU:\Software\Policies\Microsoft"
If(Test-Path ($RegKey + "\Control Panel"))
{
 $RegKey = "HKCU:\Software\Policies\Microsoft\Control Panel"
 If(Test-Path ($RegKey + "\Desktop"))
 {
   $RegKey = "HKCU:\Software\Policies\Microsoft\Control Panel\Desktop"
    ##Enabled
    New-ItemProperty -path $RegKey -name MultiUILanguageID -value 00000409 -PropertyType String -Force
 }
 else
 {
   New-Item -path $RegKey -name International
   $RegKey = "HKCU:\Software\Policies\Microsoft\Control Panel\Desktop"
    ##Enabled
    New-ItemProperty -path $RegKey -name MultiUILanguageID -value 00000409 -PropertyType String
 }
}
else
{
 New-Item -path $RegKey -name "Control Panel"
 $RegKey = "HKCU:\Software\Policies\Microsoft\Control Panel"
 New-Item -path $RegKey -name International
 $RegKey = "HKCU:\Software\Policies\Microsoft\Control Panel\Desktop"
  ##Enabled
  New-ItemProperty -path $RegKey -name MultiUILanguageID -value 00000409 -PropertyType String
}

Not Configured\Disabled

$RegKey = "HKCU:\Software\Policies\Microsoft"
Remove-ItemProperty -Path($RegKey + "\Control Panel\Desktop") -name MultiUILanguageID
If( (Get-Item -Path($RegKey + "\Control Panel\Desktop")).ValueCount -eq 0 -and (Get-Item -Path($RegKey + "\Control Panel\Desktop")).SubKeyCount -eq 0)
{
 Remove-Item -Path($RegKey + "\Control Panel\Desktop")
 If( (Get-Item -Path($RegKey + "\Control Panel")).ValueCount -eq 0 -and (Get-Item -Path($RegKey + "\Control Panel")).SubKeyCount -eq 0)
 {
   Remove-Item -Path($RegKey + "\Control Panel")
 }   
}

Languages:

English = 00000409
Japanese = 00000411
Korean = 00000412
German = 00000407
Simplified Chinese = 00000804
Traditional Chinese (Taiwan) = 00000404
French = 0000040c
Spanish = 00000c0a
Italian = 00000410
Swedish = 0000041d
Dutch = 00000413
Portuguese (Brazil) = 00000416
Finnish = 0000040b
Norwegian = 00000414
Danish = 00000406
Hungarian = 0000040e
Polish = 00000415
Russian = 00000419
Czech = 00000405
Greek = 00000408
Portuguese (Portugal) = 00000816
Turkish = 0000041f
Arabic = 00000401
Hebrew = 0000040d
Slovak = 0000041b
Slovenian = 00000424
Romanian = 00000418
Croatian = 0000041a
Bulgarian = 00000402
Estonian = 00000425
Lithuanian = 00000427
Latvian = 00000426
Thai = 0000041e
   
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