Microsoft Security Essentials Update Failed - Solved

To resolve this issue, make sure that you are connected to the Internet, and then try to download the virus and spyware definition updates again.

Microsoft Security Essentials Update Failed - Solved

If you have problems connecting to the Internet, click the following link and follow the instructions to connect to the Internet:

I cannot connect to the Internet

After you successfully connect to the Internet, follow these steps to check for and download Microsoft Security Essentials updates:

Start Microsoft Security Essentials by using one of the following two methods:

Double-click the desktop shortcut.

Click Start, type Microsoft Security Essentials in the Search programs and files box, and then click Microsoft Security Essentials from the Programs list.

Click the Update tab, and then click Update.

Allow Microsoft Security Essentials to check for and download any available updates.