I download flash player everyday and erases itself when i turn the computer off, can you tell me why?
You can refer to the steps mentioned in the following KB Doc under the topic 'Post-installation issues' : http://helpx.adobe.com/flash-player/kb/installation-problems-flash-player-windows.html
Moved to Installing Flash Player.
Is your computer in an enterprise or other restricted environment. Some companies will restore a computer to a given image after a reboot.
Do you use Windows 7?
If Yes, please see the following thread: http://forums.adobe.com/message/4323109#4323109
Retrieving data ...