Modifying the icon of applications that are pinned to your Windows 7 taskbar is fairly easy in most cases however there are various scenarios where it can be a bit more complicated. I noticed that one of my applications appeared to have a default Windows icon of some sort so I wanted to modify it so I would know what the application was. In my case I have pinned all of the applications that I use on a daily basis to the Windows 7 taskbar. This is one of the features I love of Windows 7 as it makes it really easy for me to not only launch applications but also to manage applications that are currently running. I am a huge fan of only a little icon displaying and when you hover over it you can see how many windows are open and more detail about those windows. Below I describe how to modify the icon of applications pinned to the Windows 7 taskbar and some hints of what to do if you are unable to modify those icons easily such as if the Change Icon button in the shortcut properties is greyed out or inactive.
A friend of mine also got a new laptop recently that is also running Windows 7 Ultimate 64-Bit OS. He ran into an interesting problem earlier where he was being notified about a service that Windows 7 Action Center was recommending he take action on. The issue was when he attempted to modify the settings that control how Action Center notifies you about Security Messages all of them were greyed out except for the UAC (User Account Control). Below I describe what would cause the Action Center Security Messages configuration to be greyed out and how to make those settings available again.