User Account Control (UAC) timeout
About an year ago, I wrote a relatively long and detailed post about UAC. One thing I failed to mention is what happens once an application that you have started requires acknowledgment yet the request is ignored. UAC has a timeout of two minutes. If no acknowledgment is received within those two minutes, the action fails silently (same as if you would have declined). The only thing that bugs me here is that you have no notification/logging of what just happened. If you were away from the system while the UAC prompt appeared you might not understand why something failed…