Microsoft's April 2007 security bulletin includes updates to Microsoft Windows.

Microsoft's April 3 security bulletin concerns a critical update for Windows.

Microsoft's March 2007 security bulletin includes no updates.

Learn to help avoid Remote Access Trojans (RATs): spyware that lets criminals control your computer remotely without your knowledge.

Microsoft's February 2007 security bulletin includes updates to Microsoft Windows, Microsoft Office, Microsoft Internet Explorer and Microsoft Malware Protection Antivirus Engine (including Windows Live OneCare and Windows Defender).