Follow these steps
1.Right-click the icon of the folder you want to change and choose Properties.
2.In the Properties dialog box Choose Customize tab.
3.In the Customize tab, click Choose File… within the Folder pictures section.
4.Choose your icon , photo or wallpaper you like , and Double click it.
5.Then click OK in the Properties dialog box.
Note: If you want to reset your default icon again. To do this, follow Steps 1 – 2. Then select the Restore Defaults button. Click Ok in the Properties dialog to close it. The default icon should be restored.
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