Help changing windows shell icon.

Alright, so I had recently installed a custom set of system icons, and I love them. My only problem is the "settings" icon which looks like a cog.

To ensure you understand which I am talking about, heres an image:


I know how to easily change any normal programs icon, but these icons are the default icons and need a bit of extra tinkering to change them.

If anyone knows how to manually change this cog icon, or knows of a program that allows you to do so, it would be very much appreciated to hear from you.

Actually, the cog or gear symbol is being frequently used by other versions of Windows such as Win10, Win8.1 and applications' toolbars such as in Internet Explorer. I would think your cog is part of the customization you did and a solution would be found at the site where you got the "custom set of system icons", if indeed there is a solution/fix. Because of my work with others and their computers I have to stay away that type customization, don't want the clients to get confused.