While we constantly suggest that one keeps Windows Updates current,to include all Add-ons. Especially Fash Player, Along with making certain Internet Explorer is kept up to date as well, even if one does not use it, McAfee does in order to function properly. I felt it to be noteworthy, to mention this article of importance in regards to Flash.
Users of Internet Explorer 11 and Chrome, have it baked in and will automatically be updated to the latest Version.
The following article explains more in depth HERE