On November 13th, 2012, Microsoft issued 6 security bulletins affecting its various software platforms, including Microsoft Windows, Internet Explorer, .Net Framework, and Microsoft Office.
Five of the updates will patch vulnerabilities that attackers could exploit to execute malicious code and potentially control the computer.
If your Windows system is set to "Automatic Updates", no action is required as your system will be updated when you connect to the Internet. If you do not have "Automatic Updates" enabled, go to:
Start\Settings\Control Panel\Automatic Updates and enable "Automatic Updates".
When you enable "Automatic Updates", Windows routinely checks the Windows Update Web site for high-priority updates that can help protect your computer from the latest viruses and other security threats. These updates can include security updates, critical updates, and service packs.
Depending on the setting you choose, Windows automatically downloads and installs any high-priority updates that your computer needs, or notifies you as these updates become available.
For More Information:
Microsoft Security Bulletin Advance Notification for November 2012