causes some apps to only close via the taskbar
missing the X in the upper right corner
I had a few misc apps (CCleaner, Fund mgr, a few more) that would hide the X in the upper right corner and not allow me to close via the X but only via the taskbar. This would happen when run as Admin (which I usually do) and not as another user. After going through many machinations via the Windows Microsoft Community, I decided to remove Windoblinds and the problem was solved.