Troubleshooting malware infections

Some threats can be harder to remove than others. If you're experiencing any of the following symptoms, you might need to take the additional steps listed on this page:

  • You see warnings about the same threat over and over.
  • Even though your security software says it has cleaned an infection, it comes back again as soon as you restart your PC.
  • Your security software says it can’t fully clean an infection.
  • Your security software gives you an error code.
  • Your security software takes a very long time to complete a full scan.

If you are experiencing any of these problems, you should try all of the steps on this page. You can also view virus and malware discussions on Microsoft Community to see if someone else has experienced your problem or has a solution.

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