Error message

  • Warning: file_get_contents( failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in include() (line 88 of /srv/d7/sites/
  • Notice: Undefined variable: hide_site_name in include() (line 100 of /srv/d7/sites/
  • Notice: Undefined variable: hide_site_name in include() (line 104 of /srv/d7/sites/
  • Notice: Undefined variable: hide_site_slogan in include() (line 117 of /srv/d7/sites/

FAQs: Computer viruses

How do I know if my computer has been infected with a virus?

If your anti-virus programme is working properly and its virus definitions are fully up to date, you will get a warning window, informing you of the existence of the virus and prompting you to take action. However, if you aren't so lucky, here is a list of things that should cause you to suspect that you have been infected:

  • Applications crash while using them
  • Programmes will not load what you start them
  • Your computer seems much slower than usual
  • You see the 'blue screen of death' when you are try to perform tasks
  • You can only start your computer in 'safe mode'
  • Accessing or downloading anything on the internet seems to take a really long time
  • Random pop-up ads suddenly appear on your desktop, even what you are not at your computer or surfing the internet
  • You receive complaints that you are sending infected e-mails (although this can sometimes be a result of spoofing).

What should I do if a virus infects a device such as an external drive?

Your anti-virus programme should be able to scan and clean the external device.