Well, you can make necessary changes to suit your requirement. I have used HP OEM brand you can use your own brand. To change the default background color of the Logon, metro screen, do change the value of <SystemDefaultBackgroundColor> in the autoattend.xml file to any of the color shown in the below picture. Do rename the required unattend file to Autounattend.xml View attachment w8_rtm_autounattend.xml.7z