Windows flags the program to do the given command after completing the current program. Since it is believed that File Explorer not responding is not an error but is the message for the users from Windows to tell them to wait. Hence, it pops up some messages while it works with some serious program. Windows is user-friendly OS among others. There are certain reasons why Windows Pop up the message that File Explorer not responding while we either insert a drive (CD or DVD or Peripheral device). Reasons behind “File Explorer not responding in Windows 10” Error
2.1 Force stop the program using Task Manager.2 How to fix File Explorer not responding Error.