You may refer the following doc : http://helpx.adobe.com/flash-player/kb/installation-problems-flash-pla yer-windows.html
You can also try installing using the MSI file from http://www.adobe.com/products/flashplayer/fp_distribution3.html
Thank you for your help, but neither of those options worked. Is there anything else I can try? I uninstalled flash after reading instructions on another site, and now I have no flash player at all.
Moving this discussion to the Installing Flash Player forum.
I hope you are on Windows machine.
Please download Flash Player from the following link: http://helpx.adobe.com/content/help/en/flash-player/kb/installation-problems-flash-player- windows.html#main-pars_header
After downloading, close all browsers and double-click the file you downloaded.