Some installations or settings changes require you to restart your computer. In most cases you don't need to actually reboot it, you only need to restart the explorer.exe process.
You don't need an open fire to roast chestnuts, you can roast them in a comfort of your own home over a kitchen hob and they will end up just as delicious.
Rover Curiosity is a really popular topic all around the world and I was just given a question what would been happen if an astronaut would take off the space helmet while being exposed on Mars?
If you are the kind of person you want to read what has been changed before updating an app you can disable the auto app update setting. Or enable if you want updates fully automated.