恢复win7快捷方式小箭头

reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Icons" /v 29 /f
taskkill /f /im explorer.exe
attrib -s -r -h "%userprofile%\AppData\Local\iconcache.db"
del "%userprofile%\AppData\Local\iconcache.db" /f /q
start explorer