We were out of town for about 10 days recently and upon return I restarted my machine and everything appeared to be running normally. I then installed the Aeroplane Heaven He-111P into my FSX. After that evolution I got several instances where the sim locked up during use, or the machine locked up even after the sim was shut down. I have Avira running here and one of their services I'm using checks startup functions and tells me how long it's taking for the machine to start. With the -111P installed the time was 250 seconds. The service dashboard said the startup is optimized already. The AH He-111P was removed from FSX (machine restarts normally now) and I sent an email in to them to determine what could have caused the shutdowns after the sim was closed out. Haven't heard back from them for a week so changed the title a little to see if this might draw their attention.