In addition to automatically checking for updates every four hours when you are connected to the Internet, you can also manually check for updates at any time.
Note: For maximum protection, we recommend that you let SecurityCenter automatically check for and install updates. However, if you want to only manually update your security services, you can disable automatic updating.
To manually check for updates:
Note: In some cases, you will be prompted to restart your computer to complete the update. Save all of your work and close all applications before restarting.