Firewalls prevent your computer from responding to these random calls. A firewall blocks communications to and from sources you don't permit. This is especially important if you have a high-speed internet connection, like DSL or cable. Some operating systems have built-in firewalls that may be shipped in the "off" mode.

• Make sure your glasses or contacts prescription is up to date and good for looking at a computer screen. • Move the screen so your eyes are level with the top of the monitor. That lets you Protect my PC from viruses - Windows Help Use an antimalware app. Installing an antimalware app and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Antimalware apps scan for viruses, spyware, and other malware trying to get into your email, operating system, or files. New threats can appear daily, so check the antimalware manufacturer's website frequently for updates. Turn on or off System Protection for Hard Disk in Windows 10 Turn on or off System Protection for Hard Disk in Windows 10. By turning on system protection for hard disks, you can cancel unwanted changes through reverting your PC to a previous restore point.For your convenience, the article respectively illustrates how to turn on and turn off system protection in Windows 10 computer.. Video guide on how to turn on and turn off system protection for hard How You Can Avoid Falling for a Computer Virus Scam

Use an antimalware app. Installing an antimalware app and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Antimalware apps scan for viruses, spyware, and other malware trying to get into your email, operating system, or files. New threats can appear daily, so check the antimalware manufacturer's website frequently for updates.

Best Free Software for Protecting Your PC and - PCWorld Aug 03, 2011 Windows 10- Do I need additional protection? - Microsoft

A unit with up to 1000 joules of surge protection is adequate for these small electronics. Some components have sensitive circuitry requiring protection, but don’t store extensive data. A surge protector with 1000 to 2000 joules will provide sufficient protection for power tools and office equipment such as printers, copiers and routers.

Feb 21, 2014