Best Answer - Chosen by Asker
Well seeing as you've given us nothing to work with I'm gonna assume your on a windows 7 laptop, OK?
alright in the bottom right of your screen on the task-bar you should see several little bars going up in ascending order, if you don't see this hit the little arrow then select it
next I'm gonna assume you have you have an internet service, there should be a popup menu when you click the button, select your internet and type in the password (if you have one)
now if it still does not work it's probably cause your router has malfunctioned, to fix this go find your router take out the power plug, wait 10 seconds then plug it back in in a few seconds your router SHOULD be fixed
if you don't have internet go to a McDonald's or a Tim Horten's or any sort of internet cafe
hope this helped, if you have a Mac or are running Linuxyou screwed, cause I don't know jack about mac's or Linux
Basic computer knowledge