it was because the windows running applications by limiting the application of permissions, so that when the application wants to change the file system, Windows does not allow it.
Function Run as Administrator in Windows
How can we allow the program to change the file system?
So that the application can change the file system, run with Administrator mode
Right click on his application, and select Run as Administrator
In order for these applications always run with administrator mode, right-click on the application, select Properties, select the Compatibility tab, and check Run this program as an Administrator
Give Permissions Administrator if the application that you are using is really all you need and reliable, not the application is unclear origin and potentially damage the system.
In the past, I was very lazy press Yes when opening an application, and then I allow all applications run with Administrator mode, and what happens? My laptop only lasted three weeks and Hang Continues, because I often download the app and try without thinking of potential danger.