Hi guys, first thread on here so go easy if I chose the wrong section I've recently noticed that neither my firefox, nor IE can access any link to download.microsoft.com servers. I then noticed that if I turn off Windows Firewall, both browsers are able to locate the server and download my updates... Anybody ever seen this before? If I leave WF on, but turn off Microsoft Security Essentials, the server is still blocked. So it's definitely a Windows Firewall issue. I've tried searching around for adding exceptions, but it seems you can only add exceptions for programs, not domains as far as I can tell. Very strange! Specs: Phenom II X4 955, 4GB of DDR3 1800MHz, Windows 7 Ultimate x64. Using Windows Firewall and Microsoft Security Essentials. Can't really think of what else to tell that might be helpful.