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Article ID: 969417 - Last Review: June 28, 2012 - Revision: 10.0

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On a computer that is running Windows XP, Windows Vista, or Windows 7, you can enable the following security features to improve computer security:
  • Windows Internet Explorer Phishing Filter (in Internet Explorer 7) or SmartScreen Filter (in Internet Explorer 8 and Internet Explorer 9)
  • User Account Control (UAC)
  • Data Execution Prevention (DEP)
  • Windows Firewall


Diagnose and fix the problem automatically

The Diagnose and fix Windows security problems automatically troubleshooter may automatically fix the problem described in this article.
This troubleshooter fixes many problems.Learn moreRun now

Let me fix it myself

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756  ( ) How to back up and restore the registry in Windows

Enable Phishing Filter or SmartScreen Filter

Click here to manually enable Internet Explorer Phishing Filter or SmartScreen Filter

Enable User Account Control

Click here to manually enable User Account Control

Enable DEP

Click here to manually enable Data Execution Prevention

Enable Windows Firewall

Click here to manually enable Windows Firewall


How the MATS package works to fix this problem

Click here to understand how the MATS package works to fix this problem

  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business 64-bit Edition
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
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