'You are Currently Using an Old Operative System Suddenly Appear on Your Screen' Pop-Up

'You are currently using an old operative system suddenly appear on your screen' pop-up is a deceptive notification with download links to a so-called Flash Player update but the files downloaded are not to be trusted. The deceptive message is intended to lure computer users into downloading adware, potentially unwanted programs (PUPs), browser hijackers or unwanted plug-ins. The tricky notification is not associated with the legitimate Adobe Flash Player update. The 'You are currently using an old operative system suddenly appear on your screen' pop-up message is not a dependable notification, and you should not trust its content or links. Usually, the presence of this misleading message is in indication that you should take action promptly to scan for any threats on your computer with the help of an anti-malware program.