To download updates for Microsoft security essentials, force daily updates on your device or manually download the updates from the Microsoft website. You must have already installed Microsoft security essentials on your device to download the updates.
To set daily updates, open the Microsoft security essentials software. Select the Update tab, and click on the Update button. Microsoft security essentials updates once a day to give your computer sufficient protection.
If you need to update Microsoft security essentials once a day because you have hard-to-remove malware or if you are not always connected to the Internet, you can download the updates manually. To do so, you must be logged on to you device as the administrator. You must also know whether your Windows operating system is running on a 64-bit or 32-bit operating environment. If you are unsure, visit the Microsoft website to verify the operating environment and determine if you are logged on as the administrator.
On the Microsoft website's malware protection center page, right-click on the link that corresponds to your version of Windows and choose to either Save Link As or Save Target As. You can choose to save the file on your desktop. After downloading the file, go to your desktop and double-click on the file to run it. Follow the prompts to install the Microsoft security essential updates on your device.