W7系统下office2010桌面的PPT快捷方式显示为白色小方块,但程序可以正常打开,word、excel、均正常！

把下面的文字复制到文本文档，改后缀名为.bat，双击运行，ok

rem 关闭Windows外壳程序explorer

taskkill /f /im explorer.exe

rem 清理系统图标缓存数据库

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

试一试这样
删除图标缓存文件 然后重启