How to remove Microsoft Security Essential (MSE) completely?

Most often many people find it difficult to uninstall antivirus programs properly from their PC. I think this is especially true with latest operating system Windows 7.

Main cause is that antivirus programs are tightly integrated with the operating system; a normal uninstallation some times failed or left registry entries in the system. Therefore a re-installation or installing another antivirus program will not possible.

Ok that, if you find any difficulty in uninstalling the Microsoft Security Essential (MSE) from your PC (for a fresh installation or for installing another antivirus program) here is how you can do that.MSE-cleanup-tool

Download this cleanup tool from Microsoft: (this tool is for OneCare but works with MSE also). After the tool runs if it prompts for a reboot please do so.

If you still have problem there is another method. Please visit here for details.

Kannan is a computer and Android enthusiast, a blogger by passion and a tech freak. His always ready-to-help attitude, knowledge and hard work is what drives him.


  1. Pingback: Microsoft Security Essentials Killed my internet. Help?

  2. Alex Jo

    Mar 5, 2010 at 1:50 pm

    Thank you very much. I followed your instructions and I got it.

  3. John

    Mar 5, 2010 at 10:33 am

    Ya! I was looking for that. Very great information. Thanks……….!

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