Security updates & tools

Filter options

Product category

Operating system

Download type

Reset all filters

Top picks

Microsoft Update

Check for the latest security updates to help protect your computer.

Get started›

Microsoft Security Essentials

Protect your PC from viruses, spyware, and other malicious software.

Download now›

Download security tools

Assess vulnerabilities and strengthen security with a broad range of tools.

Get started›

301 - 350 of 7487 results

Sort by:

decorative icon	product name, link and description	price and details
Security Patch	330994: April 2003, Cumulative Patch for Outlook Express 6 SP1 This update addresses the vulnerability addressed in Microsoft Security Bulletin MS03-014. To find out if more recent security updates are available for you, see the Overview section of this page.	FREE Release Date: 4/14/2003
Security Patch	Security Update for Windows XP 64-bit Edition (KB824146) This update addresses the vulnerability addressed in Microsoft Security Bulletin MS03-039. To find out if more recent security updates are available for you, see the Overview section of this page.	FREE Release Date: 9/10/2003
Security Patch	Security Update for Windows NT 4.0 (KB823980) This update addresses the vulnerability addressed in Microsoft Security Bulletin 03-026. Find out about more recent critical updates in the Overview section.	FREE Release Date: 7/16/2003
Security Patch	XP Embedded SP1 Security Update: Microsoft Security Bulletin MS05-004(887219, 887998) for .Net 1. This XP Embedded SP1 Database update addresses one (1) reissued Microsoft Security Bulletin: MS05-004. This package updates Windows XP Embedded Feature Update Q831558, .Net 1.1 for Windows XP Embedded with Service Pack 1.	FREE Release Date: 7/8/2005
Security Patch	810847: February 2003, Cumulative Patch for Internet Explorer 5.5 Service Pack 2 This update addresses the vulnerability addressed in Microsoft Security Bulletin MS03-004. To find out if more recent security updates are available for you, see the Overview section of this page.	FREE Release Date: 12/13/2002
Security Patch	SQL Server 2000 Security Tools SQL Server 2000 security tools are used to scan instances of Microsoft® SQL Server 2000™ and Microsoft SQL Server Desktop Engine (MSDE) 2000. The tools help detect instances vulnerable to the "Slammer" worm, and then apply updates to the affected files.	FREE Release Date: 2/20/2003
Security Patch	Security Update for Windows XP 64-Bit Edition (KB823980) THE MAJORITY OF WINDOWS XP USERS RUN THE 32-BIT EDITION, NOT THE 64-BIT EDITION. To ensure that you are downloading the correct patch, check your system using the simple instructions in the overview section of this page.	FREE Release Date: 7/16/2003
Security Patch	May 2013 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on May 14, 2013.	FREE Release Date: 5/14/2013
Security Patch	January 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on January 13th, 2009.	FREE Release Date: 1/13/2009
Security Patch	July 2008 Security Releases ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on July 8th, 2008.	FREE Release Date: 7/10/2008
Security Patch	February 2012 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on February 14, 2012.	FREE Release Date: 2/13/2012
Security Patch	April 2012 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on April 10, 2012.	FREE Release Date: 4/10/2012
Security Patch	May 2012 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on May 8, 2012.	FREE Release Date: 5/8/2012
Security Patch	July 2012 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on July 10, 2012.	FREE Release Date: 7/9/2012
Security Patch	August 2012 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on August 14, 2012.	FREE Release Date: 8/13/2012
Security Patch	October 2012 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on October 9, 2012.	FREE Release Date: 10/9/2012
Security Patch	November 2012 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on November 13, 2012.	FREE Release Date: 12/10/2012
Security Patch	January 2013 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on January 8, 2013.	FREE Release Date: 1/7/2013
Security Patch	March 2013 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on March 12, 2013.	FREE Release Date: 3/11/2013
Security Patch	April 2013 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on April 9, 2013.	FREE Release Date: 4/16/2013
Security Patch	August 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on August 11th, 2009.	FREE Release Date: 8/10/2009
Security Patch	December 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on December 8th, 2009.	FREE Release Date: 12/8/2009
Security Patch	January 2010 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on January 12th, 2010.	FREE Release Date: 1/11/2010
Security Patch	October 2003, Cumulative Patch for Internet Explorer for Windows Server 2003 (828750) This update addresses the vulnerability addressed in Microsoft Security Bulletin MS03-040. To find out if more recent security updates are available for you, see the Overview section of this page.	FREE Release Date: 10/3/2003
Security Patch	September 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on September 8th, 2009.	FREE Release Date: 9/8/2009
Security Patch	September 2007 Security Releases ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on September 11th, 2007.	FREE Release Date: 9/11/2007
Security Patch	May 2011 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on May 10th, 2011.	FREE Release Date: 5/16/2011
Security Patch	April 2011 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on April 12th, 2011.	FREE Release Date: 4/11/2011
Security Patch	October 2003, Cumulative Patch for Internet Explorer 6 (828750) This update addresses the vulnerability addressed in Microsoft Security Bulletin MS03-040. To find out if more recent security updates are available for you, see the Overview section of this page.	FREE Release Date: 10/3/2003
Security Patch	March 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on March 10th, 2009.	FREE Release Date: 3/9/2009
Security Patch	August 2010 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on August 10th, 2010.	FREE Release Date: 8/10/2010
Security Patch	October 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on October 13th, 2009.	FREE Release Date: 10/20/2009
Security Patch	February 2010 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on February 9th, 2010.	FREE Release Date: 2/10/2010
Security Patch	March 2011 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on March 11th, 2011.	FREE Release Date: 3/7/2011
Security Patch	Security Update for Windows NT4 Option Pack (KB310669) This update addresses the vulnerability addressed in the Microsoft Windows Security Bulletin MS02-011. To find out if more recent security updates are available for you, see the Overview section of this page.	FREE Release Date: 4/13/2004
Security Patch	June 2010 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on June 8th, 2010.	FREE Release Date: 6/24/2010
Security Patch	June 2008 Security Releases ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on June 10th, 2008.	FREE Release Date: 6/10/2008
Security Patch	July 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on July 14th, 2009.	FREE Release Date: 7/13/2009
Security Patch	September 2010 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on September 14th, 2010.	FREE Release Date: 10/7/2010
Security Patch	810847: February 2003, Cumulative Patch for Internet Explorer 6 Service Pack 1 A security vulnerability has been identified in Internet Explorer that could allow an attacker to compromise your Windows-based computer and, possibly, read files on it. Help protect your computer from this specific vulnerability by installing this update.	FREE Release Date: 1/9/2003
Security Patch	November 2008 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on November 11th, 2008.	FREE Release Date: 11/10/2008
Security Patch	SQL Server Critical Update Wizard for Microsoft® SQL Server™ 2000 and Microsoft® SQL Server Desktop Engine (MSDE) 2000 The SQL Server Critical Update Wizard will scan Microsoft SQL Server 2000 and MSDE 2000 to help detect instances vulnerable to the "Slammer" worm, and will attempt to update the affected files.	FREE Release Date: 2/20/2003
Security Patch	April 2010 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on April 13th, 2010.	FREE Release Date: 4/27/2010
Security Patch	February 2009 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on February 10th, 2009.	FREE Release Date: 2/8/2009
Security Patch	October 2003, Cumulative Patch for Internet Explorer 5.5 Service Pack 2 (828750) This update addresses the vulnerability addressed in Microsoft Security Bulletin MS03-040. To find out if more recent security updates are available for you, see the Overview section of this page.	FREE Release Date: 10/3/2003
Security Patch	October 2007 Security Releases ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on October 9th, 2007.	FREE Release Date: 10/9/2007
Security Patch	December 2007 Security Releases ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on December 11th, 2007.	FREE Release Date: 12/10/2007
Security Patch	June 2011 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on June 14, 2011.	FREE Release Date: 8/8/2011
Security Patch	July 2011 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on July 12, 2011.	FREE Release Date: 8/8/2011
Security Patch	August 2011 Security Release ISO Image This DVD5 ISO image file contains the security updates for Windows released on Windows Update on August 9, 2011.	FREE Release Date: 8/8/2011

- Windows downloads
- All Windows products
- Internet Explorer
- Windows Phone
- Office downloads
- All Office products
- Office clip art & templates

- Security
- Security updates & tools
- Virus & malware
- Microsoft Update
- Download categories
- All downloads
- Drivers
- Service packs

United States

This site in other countries/regions: