Gunit

Whenever I click any wmplayer playable files I get a popup saying:
"C:\Program Files\Windows Media Player\wmplayer.exe"
"Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item."
Tried deleting and restoring files, changing permissions, taking ownership, downloading windows media player 11. Whenever I try right clicking the shortcuts that explorer window freezes. Tried installing old version too, with no success.
my pc is virus and malware free
I have full access and control