You might want to open two files in two separate windows to compare them. Also, if you want to edit two files simultaneously, you need to open them separately. That is why you can change Notepad ...
Morningstar Quantitative Ratings for Stocks are generated using an algorithm that compares companies that are not under analyst coverage to peer companies that do receive analyst-driven ratings.
These End of Service notifications originate from the EOSNotify and OobeUpdater processes. These can be disabled using several ways, including modifying the Windows Registry, disabling Scheduled tasks ...