How to Install Microsoft Security Essentials (Windows 7)

  1. Only install Microsoft Security Essentials if you have uninstalled other anti-virus programs.
  2. In Internet Explorer go to the following link: http://www.microsoft.com/security_essentials/
  3. Click Download Now.
  4. When the Download window opens, click Run. This will download the file to your computer and run it when it is done downloading.
  5. When the User Access Control Window opens up, click OK.
  6. When the installer window opens up, click Next.
  7. When the license window opens up, click I accept.
  8. At the next window, click Install.
  9. Security Essentials will now begin to install. If the installation fails, please close everything down and restart computer and begin at the beginning. If the installation still fails, then you probably still have another Anti-virus program installed that needs to be uninstalled before you can install Microsoft Security Essentials. Once the installation completes, let Microsoft Security Essentials run a scan and update to the latest definitions. Make sure the check box is checked and click Finish.
  10. Microsoft Security Essentials will then update the definitions. Make sure the Definitions created on: has a current date. If not, click Update.
  11. Once the definitions are up to date, then you have successfully installed Microsoft Security Essentials.