Apple's iOS 10 update is causing major problems for some users

Apple's just-launched iOS 10 update is off to a rough start. According to widespread complaints across social media, many iPhone and iPad users are running into installation problems. For some, the update process fails with a subsequent error message asking users to plug their iOS device into a PC or Mac for a complete restore of the operating system. Here's Apple's support page with a step-by-step explanation of how to do that.
But this is a major headache for people who are installin