One strange pop-up does not prove an infection, but a pattern of redirects, unknown programs, disabled protection, and account alerts deserves attention.
What this usually means
Pop-ups, browser redirects, unwanted programs, account alerts, and remote-access activity require different responses. Avoid calling numbers in warnings or installing another unknown cleanup tool.
Practical checks and decisions
Separate browser scams from system infections
For “separate browser scams from system infections,” end the contact and do not use the warning’s phone number, link, or download. Preserve the message, number, software name, receipts, and sequence of events before closing or cleaning anything.
Notice changed settings and unfamiliar software
Use “notice changed settings and unfamiliar software” to separate the device from the surrounding setup. Compare the behavior before and after the check, and stop if the step would require force, unknown software, or risking important files.
Treat unauthorized account activity as urgent
Before completing “treat unauthorized account activity as urgent,” confirm that you control the recovery email, phone, and authenticator. Save backup codes somewhere separate from the computer and never give a caller, pop-up, or remote technician a one-time verification code.
Disconnect and get help when remote-access scammers are involved
After “disconnect and get help when remote-access scammers are involved,” review installed remote tools, browser notifications, email rules, active sessions, and account recovery details. The response to signs your computer might have a virus should match the access that actually occurred.
When a professional diagnosis makes sense
For signs your computer might have a virus, get help when money, passwords, email, remote access, or unfamiliar account activity may be involved. Preserve a timeline, avoid further contact with the suspected scammer, and make account changes from a trusted device.
For hands-on or remote help, review the related service, or browse the Help Center for another guide.
