I have just installed VS 2017. Resharper for VS 2017 is not available ready yet, so I decided to at least install the Productivity Power Tools. It required 3 (three) restarts of Visual Studio to complete! In VS 2015 it took one restart.
I went to the “Tools->Extensions and Updates” menu and asked to install the Productivity Power Tools. The extension manager announced that the installation will run only after I close all Visual Studio windows. Well, so I did. Then a window with a progress bar appeared, named “VSIX installer”, that then asked me again whether I want to modify Visual Studio (did’t I just request it?). I said “modify”. Then it ran some very slow installer, that enumerated each individual power tool being installed, and paused on each tool for 10-15 seconds. The installer completed and quietly disappeared (or maybe it said it was done, I don’t remember). I invoked Visual Studio again, it showed me more progress bars on startup, and then announced that the installation is completed and it wants to restart again. Is it a cool thing or what?