I have version 11.8.800.94 installed.
When I agree that the changes can be made to my system, the installation completes to 100% after which I click the “done” button.
The only thing that is different (as far as I can remember) is that after previous updates a screen appeared showing a little movie and message that version xxxx was successfully installed. That does not happen now.
Can you post a screenshot of such a pop-up? There have been many reports of fake update notifications recently.
No I can’t because when the pop-up appears, I can’t do anything else but clicking the “Yes” or “No” button on the pop-up.
If I click the “show details” link on the pop-up, I can inspect the certificate of the publisher. It is Adobe Systems.
So I guess this is not a fake update.
What files do you have in C:\Windows\system32\Macromed\Flash ?
and a directory FlashPlayerTrust
That's a bit weird; you have all required files for the Internet Explorer add-on.
Does Flash Player actually work; can you see the Flash animation at http://helpx.adobe.com/flash-player/kb/find-version-flash-player.html ?