Event Veiwer

Type this into google. There is a lot of information available.

event viewer error codes

the best way is there: http://eventid.net/

hth

I agree with F-Baer, EventID.net is an excellent source.

Here's another straight from Microsoft that should help:
http://www.microsoft.com/technet/support/ee/ee_advanced.aspx

From Microsoft. Open the event viewer via the administror folder in control panel. Select the event you want to research go to properties and scroll down you will see a connection to Micrasoft about the event.

ex: For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.