Microsoft Download Center Archive

Security Update for Windows XP x64 Edition (KB946026) - English

  • Published:
  • Version: 946026
  • Category: Security Patch
  • Language: English

  • A security issue has been identified in the mrxdav.sys driver 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:


Status: Deleted

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

FileSHA1 HashSize
WindowsServer2003.WindowsXP-KB946026-x64-ENU.exe1090100a01ee7494832c65a4cad8fea34acfbf4e787 KB

System Requirements

Operating Systems: Windows Server 2003 Service Pack 2 x64 Edition, Windows XP Professional x64 Edition

Installation Instructions

    1. To start the download, click the Download button and then do one of the following, or select another language from Change Language and then click Change.

      • Click Run to start the installation immediately.

      • Click Save to copy the download to your computer for installation at a later time.

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