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The first thing is to change the maximum cpu cycles that the program may use during scans.Open Microsoft Security Essentials on your PC and switch to the Settings tab in the program interface.Here is what you need to do to achieve that: Select Finish, and allow Microsoft Security Essentials to perform an initial scan of your computer.If you are using Microsoft Security Essentials and noticing that it impacts your PC's performance, especially during scans, then you may be interested in the following tip to reduce the load that the software has on your system.When the program successfully installs, you should see the message, You have successfully completed the Security Essentials Installation Wizard.Confirm that you don't have any other anti-virus programs installed, then select Install.Check the box for If no firewall is turned on, turn on Windows Firewall and select Next.Select Join the Customer Experience Improvement Program and then Next.
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To install Microsoft Security Essentials on Windows 7, follow these steps.
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