Happy to find this thread. I have a lab of 30 HP Elite 8300 ultra slim computers (Win7 x64). They are all fine, the lab monitor with the same computer has an issue. After the Windows 7 boot logo, there is a black screen with the mouse arrow for 90 seconds, then I can login (domain attached), from login to desktop is another 10 seconds. I have tried anything google has told me to do. Then I found this thread. I should note, when I uninstall the antivirus (AVG) the pre login wait time goes down to 40 seconds. I Pm'd you the link to the etl file. Thanks.