Is that the full error message, or is there anything else, eg an Error Code?
Has this WMP ever worked? if so what has changed since it last worked?
What methods are you using to open/play WMP? The options are;
1] Click, or double click, on a music or video file stored on your computer to play it in WMP, or
2] Open WMP via a shortcut on your Desktop, or
3] Goto Start > All programs, and open WMP from the entry in one of the folders in there.
What happens with all three methods?
If none work then there seems to be others who have had the same problem with WMP as listed in a Google search for - Window Media Player is not installed properly
Here's a couple, see if they help;
Let us know how you get on.
I keep getting a "Window Media Player is not installed properly" error message. I went to "Start, All Programs, Accessories, System Tools" and clicked on "System Restore" but with no success. Any suggestions?
Thanks for your response,