Does anyone know how to change system icons on Windows XP?

I want to replace the Windows XP desktop icons with new icons I've downloaded. I've tried right clicking on properties, but the 'Change Icon' button isn't there. I'm guessing for the system icons there's a more complexed way of changing them. If anyone can help, that would be golden.Does anyone know how to change system icons on Windows XP?
Right click on the desktop and select Properties

Go to the Desktop tab

Click on the Customize Desktop button

You will see a place in the middle of the window for changing the system icons.Does anyone know how to change system icons on Windows XP?
You must right click the icon on the desktop, then click 'properties', then click 'change icon', then click 'browse' to find and select the icon of choice.Does anyone know how to change system icons on Windows XP?
Go to start and control panel and then look for the display symbol it looks like a monitor. Double click and in there you will see the desktop and the screensaver click the desktop and put the image that you want . Press apply and then ok and you should have the desktop you want . You will find that windows has a few different desktops that you can choose from.

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