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Microsoft Download Center Archive

Security Update for Windows XP x64 Edition (KB921398)

  • Published:
  • Version: 1
  • Category: Security Patch
  • Language: English

A security issue has been identified that could allow an attacker to compromise your Windows-based system and gain control over it.

  • A security issue has been identified that could allow an attacker to compromise your Windows-based system and gain control over it. You can help protect your computer by installing this update from Microsoft. After you install this item, you may have to restart your computer.
Knowledge Base Articles:
Security Bulletins:

Files

Status: Deleted

This download is no longer available on microsoft.com. The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to August 2020.

FileSize
WindowsServer2003.WindowsXP-KB921398-x64-ENU.exe
SHA1: fe2fb155f226dbda393fafc6149e13bd4a15f9e4
11.81 MB

System Requirements

Operating Systems: Windows XP Professional x64 Edition


Installation Instructions


    1. Click the Download button at the top of this page to start the download, or choose a different language from the drop-down list and click Change.

    2. Do one of the following:


      • To start the installation immediately, click Run.

      • To copy the download to your computer for installation at a later time, click Save.



Related Resources

What is this?

In August 2020, Microsoft deleted thousands of downloads for prior versions of Windows, Office, Visual Studio, SQL Server, and countless other products. Legacy Update has catalogued the Microsoft Download Center as it stood prior to August 2020.

Check our Microsoft Download Center Archive homepage to discover more downloads.