This happens if the Hidden attribute for the
desktop.ini file is somehow removed. Follow these steps to resolve the problem:
Open an
elevated Command Prompt window. To do so, click
Start, click All Programs, click Accessories, right-click
Command Prompt, and then click Run as administrator.
Type the following commands below and press
ENTER after typing each command.
(You may copy the text below and paste it in the Command Prompt window.)