Modifying this file (oobe.jpg) only changes the install screen AFTER the contents of the DVD have been moved to the hard drive. The same holds true if you modify spwizimg.dll (both in Sources and in install.wim: windows\system32). There MUST be a file in boot.wim that can be modified to change the install screen you immediately see, but I have examined EVERY .dll in boot.wim to no effect. I have also changed the winpe.bmp (in boot.wim: windows\system32) to my own custom bitmap to no avail. My question: How can you change the install background you immediately see as the DVD boots and the first "Installing Windows" window comes up? --radigast As i specified then this image is responsible for the background of user creation etc during install.When it comes to the first background when you boot the DVD then as Innocent Devil explained its a bit more complicated.But dont worry.It should be in the next Guide update. Also im announcing a new tweak for next Guide update!:Change/delete the shining Vista orb during startup(before login screen) .