Have you uninstalled iconpackeger before applying windows default icons back ? If no, just do it now ! But if it is already uninstalled, your live folders changed to the last used live folder set . Rebuilding icon cache or system restore cannot change it. Even reinstallation of iconpackager would not be helpful .
Do you have a system image backup prior to such changes ? If you have, just restore it. But if you dont have, there is two ways open to you first :
Repair Install and second :
Icons - Change Using Resource Hacker .