win7如何清理图标缓存

taskkill /f /im explorer.exe
rem 清理系统图标缓存数据库　　 
rem attrib -h -s -r "%userprofile%\AppData\Local\IconCache.db"　　 
del /f "%userprofile%\AppData\Local\IconCache.db"　　 
attrib /s /d -h -s -r "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\*" 
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_32.db" 
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_96.db" 
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_102.db" 
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_256.db" 
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_1024.db" 
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db" 
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_sr.db" 
rem 清理 系统托盘记忆的图标　　 
echo y　reg delete "HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify" /v IconStreams 
echo y　reg delete "HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\TrayNotify" /v PastIconsStream　　 
rem 重启Windows外壳程序explorer　
start explorer