Setting Primary Language in a multilanguage OSD in Windows 8.1

Question

Hi!
I use unattended xml file to add the keyboard languages during OSD, here is a snippet of the xml file:
            <InputLocale>0409:00000409;0406:00000406;040b:0000040b;041d:0000041d;0414:00000414</InputLocale>
            <SystemLocale>en-US</SystemLocale>
            <UILanguage>en-US</UILanguage>
            <UILanguageFallback>en-US</UILanguageFallback>
            <UserLocale>en-US</UserLocale>
(en-US, da-DK, fi-FI, sv-SE, nb-NO)
This is necessary so users can set the desired keyboard for first time log on.
However, when the user has logged on, the order of the languages in control panel, decides witch language is set as "Primary Language" (not to be confused with display language). The top Language is the Primary Language in windows 8 and 8.1
So my question is:
How can I change the order of the languages with either unattended xml or script (vbscript, powershell, etc), so it can be automated in OSD?

Answer 1

Ok, so I finally figured it out!
I added two Run Command Line's
The "Language Order" package contains two files, RunOnce.cmd and SetLanguageOrder.ps1
The RunOnce.cmd contains the following:
reg load HKU\DefaultUser "C:\Users\Default\ntuser.dat"
REG ADD HKU\DefaultUser\Software\Microsoft\Windows\CurrentVersion\RunOnce /v newUserProfile /t REG_SZ /d "\"C:\Windows\System32\WindowsPowerShell\v1.0\Powershell.exe\" -noprofile -file \"C:\Program Files\SetLanguageOrder\SetLanguageOrder.ps1\""
/f
reg unload HKU\DefaultUser
xcopy SetLanguageOrder.ps1 "C:\Program Files\SetLanguageOrder\"
The SetLanguageOrder.ps1 contains the following:
Set-WinUserLanguageList -Language en-US, nb, sv-SE, da, fi -force
I hope this will help someone else later on!