Windows 8 is an easy target because so many of its design choices were sub-optimal for desktop computers and were even kind of iffy on tablets, which is what the Windows team was bizarrely designing the OS for back in 2012. It is telling that Windows 10 either undid all of Windows 8’s new features or reworked them, often dramatically.
Here’s one example: Closing a Modern app.
Modern (or as they are often referred to before Microsoft changed the name, Metro) apps are programs specific to the Windows Store, introduced with Windows 8. These apps could run on Windows 8 and Windows RT, the ill-fated version of Windows that ran on ARM processors. They were always full screen and as such felt very tablet-oriented. They lacked the usual minimize/maximize/close buttons in the top right corner so it was perhaps not surprising that some people didn’t know how to close these programs.
Microsoft wanted these to be treated like iOS apps in that you generally would never need to close them. Windows would manage memory and shift apps around as needed. But if an app misbehaved or you suddenly decided you really hated the weather app and wanted to kill it–how would you close it?
By moving the cursor to the top of the screen until it changes from a pointer to a grabby hand, then, while holding the left button down, using the hand to drag the app off the bottom of the screen.
If that sounds a bit awkward, it was even worse when you actually attempted the task, especially on large monitors with a lot of real estate to cover as you worked the app down to the bottom of the screen and the dark oblivion that awaited it. If you flinched and released the mouse button early you had to start over.
This is bad design.
Windows 8.1 modified this by having a title bar appear when you moved the mouse to the top of the screen. This title bar had the expected controls in the top right corner, including the coveted close button.
Windows 10 changes Modern apps more significantly, allowing them to run in regular windows that can be minimized, closed and moved around like any other window. If a Windows 10 device is running in tablet mode (new to Win10) Modern apps automatically switch to full screen mode and behave as they do in 8.1. This is one of many examples of the Windows 10 team both correcting the flaws of Windows 8, while also coming up with new and better ways for the UI to behave.