Hi, this one is driving me nuts, have a win 7 home pre 64 bit machine that was very infected, I cleaned it all up and it keeps hanging on the blue windows 7 welcome screen on boot for like 5 mins. once it gets to the desktop its fine. I have run all hardware tests and booted to safe mode and disabled everything except known startups and imported default services. I booted to erd and tried to run sfc but got pending update issue so I deleted the pending.xml file, also sfc run from within windows at cmd stops at 21% with a Windows Resource Protection could not perform the requested operation error. Ideas?