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Why do I need to uninstall other security programs before I install Windows Live OneCare?

In general, you should not run two security programs at the same time on your computer if they are designed to perform similar functions. Running two antivirus programs at the same time, for example, can seriously reduce the performance of your computer and might even cause some of your programs to stop responding.

Because Windows Live OneCare is a comprehensive security and performance program, you should uninstall other security-related programs such as antivirus programs and software firewalls before you install Windows Live OneCare on your computer.

Note

Windows Firewall is an exception, because it is a built-in component of Windows and cannot be uninstalled. Windows Live OneCare turns off Windows Firewall automatically after setup is complete.


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