I was tinking the forever time need to do simple task taking forever was because I was in win7. I'm now with the latest win10.
I'm selecting around 50 annotations to bath activating Page Query. I start selecting my map series page filter for more than one hour and, still running. Take more time than doing it manually one by one in arcmap.
It's using around 50% of the CPU and memory....
Not very fast for a 64-bit program.
Lots of actions, primarily make in the table of contents take forever.