virus on laptop

The built-in anti-malware does well.

Most folks get in trouble with running older macOS versions, or with subscribing to a spammer’s calendar, with deliberately-installed adware, or with concerns triggered by pop-ups or other advertising.

Here’s how most of us are getting in trouble > Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

If you do not already have a current and complete backup, go get that now. Like right now. This on the off chance that there is a hardware problem here.

Then… Download and run EtreCheck (free), then share the report to the clipboard. Open a new reply here, press the button that looks like a printed page to get a big-enough text input box, and paste the hardware and software configuration report here.

Iv1Third Said:

"virus on laptop: How to check if their is a virus on computer"

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Referring to an Apple computer? There is no virus on your Apple computer.