Use a trusted antivirus like Malwarebytes or Microsoft Defender to ensure no background "adware" is causing these pop-ups to reappear [1, 5].
Immediately close the browser tab or window showing this message. download/view now ( 280.47 MB )
To frighten or entice you into clicking, which typically leads to the installation of browser hijackers, "PC cleaners" that are actually junkware, or credential-stealing Trojans [4]. Use a trusted antivirus like Malwarebytes or Microsoft
You visit a site, and a system-style notification appears saying a file is ready. "PC cleaners" that are actually junkware
High if you click or run the file; Low if you simply close the tab. Anatomy of the Scam
Usually triggered by "malvertising" (bad ads), redirected links from pirated content sites, or "push notifications" you accidentally allowed in your browser [2, 3].