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I can't install Microsoft Security Essentials
Learn the different steps you can take when you are having problems installing Microsoft Security Essentials on your computer.
How do I uninstall antivirus or antispyware programs?
Learn how to remove an antivirus or anti-spyware program that is installed on your PC before installing Microsoft Security Essentials.
Microsoft Security Essentials - Microsoft Windows Help
Get help for Microsoft Security Essentials, such as how to scan and remove viruses and other malware.
Microsoft Security Essentials - Free Antivirus for Windows
Find out how Microsoft Security Essentials guards your PC against viruses, spyware, and other malicious software and download Microsoft Security Essentials for free.