After installing the latest windows update, I cannot connect my notebook to the internet (either via wireless or direct link to a router). But after I restored the system back to 2 days ago before I installed the updates, everything is back to normal. I don't know whether this problem is due to the nature of the specific updates that were released or sth from my notebook (sony vaio with windows 7 64-bit home premium version). The updates I installed before were: Update for Microsoft Silverlight(KB2416427), Update for IE 8 compatibility view list for x64-based systems(KB2362765), Update for windows 7 for x-64 based systems (KB2158563, KB979538), Definition Update for windows defender (KB915597). Will highly appreciate it if some expert can provide me some useful advice on this.