The "My Computer" is for many user a reference point on Windows 8 and "This-PC" on Windows 8.1 to manage files and folders!
You can use the shortcut [Windows logo]+[E] to start the Win-8 Explorer to see the "My Computer" in Windows-8 Explorer (... see Image-1 Arrow-1) . On Windows-8.1 is called "This PC" (... see Image-2 Arrow-1)!
You can also use the alternative file manager, like the Quad-Explorer Q-Dir for Windows-8 and 8.1.
See also : How to Show Control Panel, My Computer, Network on Windows 8 Desktop?
To open the Disk-Management see: ... Open the Disk-Management in Windows 8!
You can also see the win 8, 8.1: Libraries , Documents , Downloads , Network , ....
FAQ 51: Updated on: March 2th 2014 12:27