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This will work for Windows Vista, 7 or 8.
This is the default location of icon cache database
C:\Users\User-Name\AppData\Local\IconCache.db
Fire up cmd as an Administrator and give the following commands by turn:
ie4uinit.exe -ClearIconCacheThis will force the IconCache.db to rebuild.
taskkill /IM explorer.exe /F
DEL "%localappdata%\IconCache.db" /A
shutdown /r /f /t 00