Do not login to the computer as an administrator, unless it is necessary. Malware can cause enormous damage on the administrator's account. Login to your computer as a common user.
An antivirus program is fundamental, no discussion. An antivirus program can detect malware but also software applications which appear legitimate, but contain a harmful code. If the antivirus program informs you that the website is infected, do not ever open it. Always observe the instructions of the antivirus software.
Update antivirus software. A non-updated antivirus program will not protect your sufficiently, as it is not able to detect new types of viruses which are created every day and are more and more sophisticated.
Check your computer regularly by running the antivirus program. We recommend checking all contents of your computer at regular intervals (e.g. once a week). Checks may also be automatic.
Do not download contents from the Internet illegally.Attackers love using attractive films or music which they disseminate for free via the online storage services. And they often add a virus to the package.
Use only a legal version of the operation system. Legally acquired software is, besides other things, provided with updates supplied directly by the producer. Non-updated software is not able to prevent attacks of new viruses, nor is it able to protect sensitive data.