“Hello, your computer has virus” messages are fake security alerts shown by web pages, pop-up windows or browser notifications — not by a scan of your computer. Their purpose is to alarm the visitor and to push one of three actions: call a phone number, install a program (often remote‑access software), or pay for a supposed fix.
Hello Your Computer Has Virus pop-up: what it is
The exact wording varies from site to site, but reports show a recurring pattern: a greeting, a claim that a virus, spyware or a Trojan was found, a warning that files, photos or banking details are at risk, and an urgent way to “fix it now.” Because the wording changes, there is no single site or file behind every alert. The publisher’s server found no reported address for this phrase and the phrase is not a domain name, so there was nothing specific to request or look up; this article therefore describes the type of message rather than a single source.
Microsoft’s guidance on tech support scams attributes these alerts to malicious ads, pages on pirated‑software sites, and video or music sites that can redirect visitors to pages showing fake blue‑screen errors or bogus Windows activation windows. Affected pages may go full screen, disable Task Manager, repeat pop‑ups or play audio alerts. Software installed earlier can also display fake error notifications, and e‑mails, texts and chat messages can link to the same kind of page.
What it is: a scare message displayed by a web page, pop‑up or browser notification — a form of tech support scam.
What it is not: a report from Windows, from Microsoft Defender or from your own antivirus; a web page cannot scan your files.
What it wants: a call to a phone number, a downloaded program or a payment.
Where it comes from: malicious ads, pirated software sites, video and music sites, or links in e‑mails, texts and chats, and sites you have allowed to send notifications.
Who can encounter it: anyone who opens a web page on any computer or phone. The steps referenced in this article are for Windows.
