Interesting, thanks for the info on the log location. Reading thru the log, I find several interesting issues. The installer DOES find my autounattend.xml file! Later though the log says 'user did not accept eula in the unattend file' but it is clearly accepted. It says no product key found but it is clearly defined (WSIM complains if it isn't there). There are several references to unattend.xml which I do not currently have on the USB stick. <UserData> <ProductKey> <Key>REMOVED</Key> <WillShowUI>OnError</WillShowUI> </ProductKey> <AcceptEula>true</AcceptEula> </UserData> setupact.zip