ok here's as easy as I can explain.
Step one: get router
step 2 connect ISPs router to INTERNET plug into router.
step 3 plug both laptop and pc with wire/or if wireless ignore pluging laptop.
Step 4(if wireless) right click internet connections on bottom right connect. Find your router in list connect. Done.
step4(wired) if it's wired and still not working (right click on toolbar where internet icon is) diag and repair should tell u wire not plugged in properly, Once u get this message but ALL WIRES ARE PLUGGED CORRECTLY. Just restart it'll stop u from havign to do it manually cause you dont seem very smart :X it'll diag and repair as your laptop starts up.
Step for idiots. If your wireless and its not working makesure the WIFI button on you laptop is turned on.
as much I can help you with the information givin so far :X