When you are ready to end a computing session, you should, at the very least, secure your computer so that others can’t access it. You do this by locking the computer. You can access the Lock option from the Start screen,
To search in the Start screen, you can just start typing. For example, type Outlook in the Start screen to find Outlook. Then just tap or click the app on the left side of the screen to open it.
The desktop is still a very important part of Windows 8, but you open the desktop like you would open any other application—by clicking its tile in the Start screen.
Windows 8 now has a charms menu, which shows up on the right side of the screen when you point to the upper-right or lower-right corner of the screen with the mouse.
The Start screen replaces the Start button in earlier versions of Windows and is the starting point for everything you do in Windows 8.
The first thing you see after installing Windows 8 is the Lock screen. The Lock screen shows a full-screen image, the date and time, your battery status if you are on a laptop, your network status, and notifications (if turned on).
File History is a new file backup and restore feature of Windows 8. It works just like the Windows Restore Point, allowing you to save the User Profile folders to any external storage device, so they can be easily restored at any time.
The new Copy/Move dialog box includes a file copy/move progress graph which helps users visually check the copying/moving speed, along with a pause/resume button to instantly pause the copy/move operation and then resume it back.
The Windows 8 Reset utility provides a one-stop solution to those who are planning to sell their Windows 8 PC without leaving any chances of recovering personal information and other important data from the PC.
Refreshing your Windows 8 PC reinstalls Windows 8 and keeps your personal files, settings, and any apps that came with your PC and apps that you installed from the Windows Store.