Incase your pc is disable UAC and explorer refreshing is not working. Such as file is deleted and it is still there until you pressing F5 or refresh the desktop. Well here is the fix for it.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\CLSID\{BDEADE7F-C265-11D0-BCED-00A0C90AB50F}\Instance]
“Dontrefresh”=”0”

Apply and restart.