Since Windows 8 probably looks completely different to you, Help and Support may become your newest friend until you’ve grown accustomed to the Metro interface, the tiles, and the charms.  Windows 8 provides help for your general Windows features as well as help for your apps.  You can find instructions on accessing Help and Support below:

1.  On the Start screen, if you’re using a mouse, hover the pointer in the lower right of the screen, and click the Search charm.
2.  Click Help and begin your search for the topic.

For apps:

1.  If you’re already within an app, click the Settings charm and then click Help.

Note:  For some apps, the Help option may be accessed by another means, so you may always refer to the manufacturer’s website for assistance.