Virus Protection

Brandon Mullins 40 Reputation points
2026-01-21T16:32:39.2033333+00:00

How do I know if my computer has a virus or if I need to add extra protection?

Microsoft 365 and Office | Microsoft 365 Defender | For home | Other
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Richard Trinidad 6,330 Reputation points Independent Advisor
2026-01-21T17:10:00.6233333+00:00

Hi, thanks for posting here in Microsoft community, these pop ups can come from the real McAfee software, but they can also be fake alerts trying to scare you into installing something, first thing to do is check if McAfee is actually installed on your computer and update or run a scan from the real app, not the pop up.

If you do not use McAfee at all, the pop ups could be from browser notification or adware that needs to be removed, I suggest open your Start menu then search for McAfee then see if it is truly installed, If it is, run a scan directly from the app, If not, you may just need to clear your browser notifications or remove a suspicious extension.

Just to narrow it down mate, do the pop ups appear even when your browser is closed, or only while browsing?

I hope that helps you, let me know how it goes

Chard

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AI answer

2026-01-21T16:32:49.62+00:00

You can determine if your computer has a virus or if you need extra protection by looking for specific signs of malicious software. Here are some indicators:

  1. Unexpected Changes: If you notice new toolbars, links, or favorites in your web browser that you didn't add, or if your home page or search program changes unexpectedly, this could be a sign of infection.
  2. Redirects: If you type in a web address and are taken to a different site without your consent, it may indicate malware.
  3. Performance Issues: A sudden slowdown in your computer's performance can also suggest the presence of malicious software.
  4. Pop-up Ads: Seeing pop-up ads even when you're not browsing the internet is another potential symptom.
  5. File Deletion: If files are being deleted automatically from your computer, this is a serious warning sign.
  6. Unusual Network Activity: If your computer is being used to attack other computers, that indicates a serious infection.

To protect your computer, ensure that you have up-to-date antivirus and antispyware software, like Windows Defender, running at all times. Regularly scan your system for potential threats and keep your software updated to defend against new viruses and malware.

References:

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  1. Brandon Mullins 40 Reputation points
    2026-01-21T16:34:17.1833333+00:00

    What do I need to do if I keep getting McAfee popups saying my computer is infected with a virus?

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