When I try to enstall Second Life Video Player. I riecive message like this- Install_Media_Player. Has Failed. What am I Doing wrong, Ready to do Repair now, Deleted and removed other players and rebooted computer.
i assume you mean you're trying to install the adobe flash player.
if so, uninstall it, http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html
then manually install it, http://www.adobe.com/support/flashplayer/downloads.html