Security updates & tools

Filter options

Product category

Operating system

Download type

Get the latest updates for your PC at Microsoft Update.
Microsoft Update
Protect your PC from viruses, spyware, and other malicious software.
Microsoft Security Essentials
Download security tools, toolkits, and guides.
Download security tools
decorative icon product name, link and description price and details
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Excel Viewer that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft Office Excel Viewer documents are handled appropriately.
FREE
Release Date:
6/8/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Excel Viewer that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
12/9/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Publisher 2007 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft Office Publisher 2007 documents are handled appropriately.
FREE
Release Date:
7/10/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Excel Viewer that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
10/13/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Word 2007 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft Office Word 2007 documents are handled appropriately.
FREE
Release Date:
6/8/2009
Security Patch
Security Patch
A security issue has been identified in the SQL Server 2012 RTM that could allow an attacker to compromise your system and gain control over it.
FREE
Release Date:
10/8/2012
Security Patch
Security Patch
A security vulnerability exists in the 2007 Microsoft Office System and the Microsoft Office Compatibility Pack that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
11/9/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Word 2007 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft Office Word 2007 documents are handled appropriately.
FREE
Release Date:
6/8/2009
Security Patch
Security Patch
This update addresses the vulnerability addressed in the Microsoft Windows Security Bulletin MS03-041. To find out if more recent security updates are available for you, see the Overview section of this page.
FREE
Release Date:
10/14/2003
Document
Document
The Security Configuration Wizard documentation set contains deployment, extensibility options and troubleshooting tips to assist you in running SCW.
FREE
Release Date:
2/1/2006
Security Patch
Security Patch
A security issue has been identified in the SQL Server 2008 R2 RTM that could allow an attacker to compromise your system and gain control over it.
FREE
Release Date:
6/13/2011
Security Patch
Security Patch
A security issue has been identified in the SQL Server 2008 R2 RTM that could allow an attacker to compromise your system and gain control over it.
FREE
Release Date:
6/13/2011
Security Patch
Security Patch
Microsoft has released a patch that eliminates a security vulnerability in Microsoft® Windows Media™ Player 6.4, 7, and 7.1. This vulnerability could potentially enable a malicious user to cause code of his choice to run on another user’s computer.
FREE
Release Date:
7/25/2001
Security Patch
Security Patch
A security issue has been identified in the SQL Server 2005 Service Pack 4 that could allow an attacker to compromise your system and gain control over it.
FREE
Release Date:
10/8/2012
Security Patch
Security Patch
A security issue has been identified in the SQL Server 2008 Service Pack 3 that could allow an attacker to compromise your system and gain control over it.
FREE
Release Date:
10/8/2012
Security Patch
Security Patch
A security vulnerability exists in Microsoft Visio 2002 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that documents are handled appropriately.
FREE
Release Date:
4/7/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Visio 2003 that could allow arbitrary code to run when a maliciously modified file is opened.This update resolves this vulnerability.
FREE
Release Date:
2/2/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Excel 2000 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
8/8/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Word 2002 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
5/12/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Excel 2000 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
12/9/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Project 2002 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
4/7/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office XP that could allow remote code execution. This update resolves that vulnerability.
FREE
Release Date:
9/8/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office XP that could allow arbitrary code to run when you visit a maliciously modified web page. This update resolves that vulnerability.
FREE
Release Date:
12/9/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft PowerPoint Viewer 2003 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft PowerPoint Viewer 2003 documents are handled appropriately.
FREE
Release Date:
5/11/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Excel 2000 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
4/10/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Word 2002 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft Word 2002 documents are handled appropriately.
FREE
Release Date:
6/8/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft PowerPoint 2002 that could allow arbitrary code to run when a maliciously modified document is opened. This update resolves that vulnerability.
FREE
Release Date:
8/8/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Outlook 2000 that could allow arbitrary code to run when you click on a maliciously modified hyperlink. This update resolves that vulnerability.
FREE
Release Date:
3/10/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Excel 2000 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
10/13/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office XP that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
3/10/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Excel 2000 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
6/8/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Visio 2002 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
2/12/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Excel 2000 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
3/10/2008
Security Patch
Security Patch
This update addresses the vulnerability addressed in the Microsoft Windows Security Bulletin MS03-043. To find out if more recent security updates are available for you, see the Overview section of this page.
FREE
Release Date:
10/29/2003
Document
Document
This article discusses how the Microsoft IT team made key improvements to security, productivity, and performance with the development and deployment of Windows 8, Windows Phone 8, and Windows RT and how other enterprises can gain a more secure environment and an enhanced user experience when deploying Windows...
FREE
Release Date:
6/28/2013
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Excel 2003 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
4/10/2009
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Visio 2007 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft Office Visio 2007 documents are handled appropriately.
FREE
Release Date:
4/7/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Excel 2003 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability.
FREE
Release Date:
10/13/2008
Security Patch
Security Patch
A security vulnerability exists in the Snapshot Viewer that could allow arbitrary code to run when you open a maliciously modified web page or document. This update resolves that vulnerability.
FREE
Release Date:
8/8/2008
Security Patch
Security Patch
A security vulnerability exists in Microsoft Office Word 2003 that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that Microsoft Office Word 2003 documents are handled appropriately.
FREE
Release Date:
6/8/2009
1 2 3 4 5 6 7 8 9
 
Results per page:1020304050