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What to do if computer is infected?


What to do if computer is infected?

Where to start?

How to scan / detect?

  • How to detect a virus if you have F-Secure Anti-Virus?
  • How to test that your antivirus product works?
  • How do I know if my antivirus signature databases are up-to-date?
  • How to detect a virus if you do not have F-Secure Anti-Virus?
  • Why virus/worm/trojan is not listed on the virus description pages?
  • How to clean?

  • How to clean an infected mailbox?
  • How to restore a deleted mailbox?
  • How to clean archives (compressed files)?
  • How to clean an infected System Volume Information or System Restore folder?
  • How to clean an infected Master Boot Record (MBR)?
  • How to delete / remove?

  • How to remove a worm or trojan manually if it cannot be cleaned?
  • How to remove a classloader exploit and other IE trojans?
  • How to delete an infected file?
  • Some files cannot be deleted through Windows Explorer. Why?
  • Why it cannot be scanned or cleaned?

  • Some files cannot be cleaned. Why?
  • Some files cannot be scanned. Why?
  • I removed a virus/worm from my computer. Why does it get reinfected?
  • How to remove files that cannot be cleaned/disinfected?
  • Important links:

  • How to use the F-Prot for DOS utility?
  • Check virus descriptions
  • Download virus removal tools
  • Manually update virus definition files
  • Upgrade F-Secure software


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