I'm currently having a problem accessing the internet with my laptop, it shows as being connected to the wifi but won't let me access web sites..

I'm in the process of doing a system restore at the moment to see if this cures it. I have just recently updated my macafee which was only an update key so no uninstalls etc..I'm on WiFi at the moment with my phone, so it's not the connection. Its an acer laptop running windows 7..

Oh and I'm not great with computers, so keep it as simple as me please