Troubleshooting Security Issues

Many viruses will announce that your system is infected as soon as they gain access to it. They may take control of your system and flash annoying messages on your screen or destroy your hard disk. When this occurs, you’ll know that you’re a victim. Other viruses will cause your system to slow down, cause files to disappear from your computer, or take over your disk space. The Windows Security Center, shown in Figure 19-7, can show you what security measures are set on your system.

Viruses are the most common type of malware. In this section, we use the term virus to refer to many types of malware.

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