Download and save the uninstaller Save it to your downloads folder - DO NOT run it yet.
Download the Adobe Flash Player installer directly by right clicking one (or both) of the following links and selecting "Save Target as"(IE) or "Save Link as"(other browsers).
Save the installer(s) to your downloads folder - DO NOT run it(them) yet.
Reboot your system.
BEFORE you run anything else, locate and run the uninstaller.
When it finishes, run the installer(s) to put Flash Player on your system again.