I was pretty surprised when I installed Windows 10 and it changed to another default for my web browser. Even worse was it didn't reset the "do you want me as the default" in all of the other web browsers so I had to go and manually change settings. Microsoft Edge is pretty nice especially compared to IE but this default to Edge should have only occurred if your current default is IE.
Google Chrome pops up a bar that takes you directly to the settings. It's literally two clicks to change it back.
Microsoft should have preserved the defaults, but I think Google's solution is preferable to a complaint letter.