Windows 8 system how to limit disk access

In the computer, each disk partition is acting as a room role, and we can use policies to close these “doors” to restrict access, how does the Windows 8 system limit disk access?
1. First click on the desktop &ldquo ; Win + R & rdquo; button, call out "Run window, enter "lded; gpedIT.msc & rdquo; then click & ldquo; OK & rdquo;;
2, in the "local group policy editor" in this choice “User Configuration”,“Administrative Template","Windows Components",“Windows Explorer 
3, find the prevention from "My Computer" access drive option, double click Open it;
3, find the option to prevent access to the drive from the "My Computer" option, double click to open it;
4, select "already" is enabled, select the option to disable Partition, click & ldquo; OK & rdquo;;
5, restart the computer, or use the command > gpupdate /force & rdquo; refresh group policy, open the partition again will prompt restricted access.