I came across an irritating issue on my Windows 7 machine. Something would keep tacking focus from me. As I spend a lot of time in a full screen Ubuntu virtual machine under VMWare, this was amazingly annoying but I just couldn’t track it down.
Eventually a suggestion from Simon Bisson that iTunes had a reputation for doing such things put me on the right track. I don’t have iTunes on Windows but I did have the Apple Software Updater and QuickTime installed. I removed both of them and so far the issue has not returned in the last couple of days.
Let’s hope this is not a false dawn.