Where does Windows 'cache' desktop icons?

[hotfusion]

The problem: On boot, it takes several seconds for the desktop icons to fill in from the generic icon.
I understand Windows creates a cache of icons somewhere for quick access - this is obviously no longer working properly. Is it wise to delete the contents of this cache so as to start afresh?
If so, where can I find it?
Regards, Andy. My suggestions are what I would try myself. If incorrect, I welcome corrections to my rather limited knowledge. Andy.

 

[techsent]

1. Unhide all files via My Computer/View on the Menu/Folder Options/View Tab.
2. Go to Start/Find/Files or Folders and search for shelliconcache delete it and reboot.