Choosing a Good Password
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Types of Computer Security Threats
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Steps to Protect Your Computer online
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Wireless Network Vulnerabilities
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How do I know if my computer is infected?
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What to do if your Computer Becomes infected
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Free Anti Virus Software

What to do if your computer becomes infected?

If your computer is infected with a virus, you'll want to remove it as quickly as possible. A fast way to check for viruses is to use an online scanner, such as the Microsoft Safety Scanner. The scanner is a free online service that helps you identify and remove viruses, clean up your hard disk, and generally improve your computer's performance.

To run the Microsoft Safety Scanner

  1. Go to the Microsoft Safety Scanner webpage to download the scanner.
  2. Click Download Now, and then follow the instructions on the screen.

If you can't connect to the Internet, try restarting your computer in safe mode with networking enabled.

To restart in Safe Mode with networking enabled

  1. Restart your computer.
  2. When you see the computer manufacturer's logo, press and hold the F8 key.
  3. On the Advanced Boot Options screen, use the arrow keys to highlight Safe Mode with Networking, and then press Enter.
  4. Log on to your computer with a user account that has administrator rights.
  5. Follow the steps above to run the Microsoft Safety Scanner.

If you still can't access the Internet after restarting in safe mode, try resetting your Internet Explorer proxy settings. The following steps reset the proxy settings in the Windows registry so that you can access the Internet again.

To reset Internet Explorer proxy settings

  1. In Windows 7, click the Start button . In the search box, type run, and then, in the list of results, click Run. -or- In Windows Vista, click the Start button , and then click Run. -or- In Windows XP, click Start, and then click Run.
  2. Copy and paste or type the following text in the Open box in the Run dialog box: reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 0 /f
  3. Click OK.
  4. In Windows 7, click the Start button . In the search box, type run, and then, in the list of results, click Run. -or- In Windows Vista, click the Start button , and then click Run. -or- In Windows XP, click Start, and then click Run.
  5. Copy and paste or type the following text in the Open box in the Run dialog box: reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /f
  6. Click OK.

Restart Internet Explorer and then follow the steps listed previously to run the scanner.

Sometimes a virus must be removed manually. This can become a technical process that you should leave to a certified repair technician. only undertake if you have experience with the Windows registry and know how to view and delete system and program files in Windows.

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