If you want to know how to navigate Windows 8 with a mouse and keyboard, this guide will help you out a bit.
Metro interface of Windows 8 seems to be perfect for touch input but what about mouse control?
No doubt, navigation on non-touch devices (mouse or keyboard input) can be improved further in windows 8. Features like De-emphasizing scrollbars, Multi-gesture swiping etc. are still missing in Windows 8 mouse control. While touch input Windows 8 devices support all these things.
Here you can see some popular navigation operations performed using mouse.
Click and hold the bottom screen and drag it up to escape from lock screen. You can also double click on anywhere on the screen to do the same thing.
Switch to Metro UI
Click on the Start Menu icon to swtich to metro UI form desktop mode.
Open a Tile
Left click on the tile to open it.
Right Click on the tile to see the options available for that tile.
Click on the tile and hold it .Then drag that tile to the desired position.
Scroll down to see the tiles of the right and scroll upward to see tiles of the left. Or you can simply click on the rightward arrow on the bottom of the screen or leftwared arrow to navigate the tiles in Metro UI.
Take the cursor to the left of the screen and hold that for a second and you will see a very small window of the previous application you were in. Then Left click to opent that application.