The "The Shockwave Flash plug-in has crashed" Fake Message or Advertisement

Because scammers know that Shockwave Flash plug-in is crashing on a lot of computers, they have created these fake messages or advertisements,which displays the message “The Shockwave Flash plugin has crashed. Update the plugin to try again.”, even if your Shockwave Flash plug-in is not crashing.
Clicking on these fake messages or advertisements may take you to a malicious or compromised website that will ask you to download a virus, Trojan horse or other software with potentially unwanted programs disguised as legitimate software.
So, instead of clicking on these fake messages or advertisements, please click here for information about preventing Shockwave Flash from crashing.