How to Uninstall Microsoft Security Essentials (MSE Removal Tool)
Microsoft Security Essentials (MSE) is an easy-to-use antivirus program, it runs silently in the background and automatically updates its virus definitions everyday. Even if it seems very good, some people want to uninstall Microsoft Security Essentials from their computer can follow these steps.
Screenshots by Terry | PCDIY.com
Click "Start" (1) in the left bottom corner, then click "Control Panel" (2) in the Start Menu.
Change "View by" option to Category (3), and then under Programs section, click "Uninstall a program" link.
PS. You can also search "program" in the search bar in right top corner to find the same link.
Right click Microsoft Security Essentials, then click "Uninstall".
Clicking "Uninstall" will start the uninstallation process of Microsoft Security Essentials. Removing Security Essentials might leave your computer unprotected, make sure you want to do this, if yes, click on "Uninstall" (5) to continue.
The Windows Security Essentials is uninstalling. All files related to Microsoft Security Essentials will be removed.
You're done, the MSE have been removed from your computer successfully. I suggest you have to install an antivirus software ASAP to protect your computer from potential threats. Click "Finish" (6) to close.