Autounattend.xml not working

Hi everyone!
I'm trying to use this Autounattend.xml:

Code:

<?xml version="1.0" encoding="utf-8"?>
<unattend xmlns="urn:schemas-microsoft-com:unattend">
    <settings pass="specialize">
        <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
            <ComputerName>DESKTOP1</ComputerName>
        </component>
        <component name="Microsoft-Windows-Shell-Setup" 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">
            <ComputerName>DESKTOP1</ComputerName>
        </component>
    </settings>
</unattend>

to set only a computer name, but it doesn't work unless I add also this part:

Code:

    <settings pass="windowsPE">
    </settings>

If I add the pass of windowsPE it works perfectly, even if I don't write anything in that section..
But if I add that pass, the setup skips the first window where I can select repair my computer instead of install..

What am I doing wrong?

Please help me .

PS. I dunno if that's important but I'm using an ISO from windows 10 x86 home setup, with an install.wim with inside all the versions of windows 10 (both x64 and x86)

 

I've looked into c:\windows\panther for log files and it seems that the autounattend.xml is recognized at the beginning during windows PE, but it just skips it because it doesn't contain information about that section. During the specialize phase doesn't even find it.. What's going on?