Turn panes on and off
File Explorer has several useful panes you can turn on and off. Click the View tab to find them. You'll find ways to turn them on and off on the far left-hand side of the Ribbon. Just click the pane you want turned on, and if there are options, select options from the menu that appears when you click the arrow next to the pane's icon.
The first basic choice is whether to use the Navigation pane. That's the pane on the left-hand side of File Explorer, and it's what you use to navigate through your hard disk. Click its icon on the View tab and uncheck "Navigation pane" to turn it off, or check it to turn it on. There are also several other options available, such as whether to show favorite folders such as Desktop, Downloads and Recent Places.
The Navigation pane on the left helps you get around your hard drive. The Preview pane on the right displays a large thumbnail of a file you click. Click to view larger image.
There's another choice there: whether to use the Preview pane or the Details pane, or neither. (You can't use both at once.) Either pane lives all the way over on the right-hand side of File Explorer. If you select the Preview pane and then click a file, you'll see a large thumbnail of the file in the pane, or else the actual contents of the file, as long as you have an app that runs or reads the file. (For example, Office for displaying .doc files.)
The Details pane shows detailed file information and a small thumbnail.
If you instead choose the Details pane, you'll see details about the file, such as its size, when it was created, its file name and more depending on the file type. (For example, for pictures it displays the dimensions.)
Click the Preview pane or Details pane icon in the Ribbon to turn it on, and click it again to turn it off.
Display hidden files and folders
Microsoft assumes that most people don't want to see the plumbing of Windows, and so hides many system files and folders, as well as file name extensions. But if you want to tweak how Windows 8 works, you'll need to see that plumbing.
It's easy to display it. On the View tab, check the box next to "Hidden items" to display hidden system files and folders, and check the box next to "File name extensions" to display those.
Hide files and folders
To hide those files and folders again, simply uncheck the "Hidden items" checkbox again.
Want to hide more files and folders? Simply select them, then click "Hide selected items" near the right edge of the Ribbon's View tab. Then, when the "Hidden items" checkbox is unchecked, you won't be able to see those items.