Force rebuild icons cache in Windows Vista

In the elevated command prompt, type the following commands and press Enter after each command :

cd %systemdrive%\Users\%username%\AppDataLocal
attrib -h iconcache.db
taskkill /f /im explorer.exe
del iconcache.db
start explorer.exe

This would close the Windows Explorer, delete the icon cache and again restart the Windows explorer. When Windows Explorer restarts, icon cache would be rebuilt.