If you have noticed that your computer is running slow or is just not working like it used to when you got it. Chances are that you have a virus. Viruses can cause devistating effects on your computer and should not be ignored.
You can easily download spyware without knowing from heaps of sites on the internet hidden in Software, Files, Images and Documents. Computer hackers can then secretly spy on your browsing history, access private files and documents and even run key stroke logger software and record your passwords and access details. As you can imagine, this is not good and should be sorted out quickly to avoid loss of data and financial loss.