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    Security Update for Windows XP 64-Bit Edition (KB823980)

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    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.
    • Version:


      File Name:


      Date Published:


      File Size:

      5.5 MB

      KB Articles: KB823980

        Are you sure you're running Windows XP 64-Bit Edition? The majority of Windows XP users run the 32-Bit Edition. To find out which operating system your computer is running, first click Start, and then click Run. In the box that appears, type winver, and then click OK. The window that appears will show you which version of Windows your computer is using. If you see 64-Bit Edition in the product name along with Windows XP, this download is for you. If not, get the Blaster Worm: Critical Security Patch for Windows XP.

        About this download: A security issue has been identified that could allow an attacker to remotely compromise a computer running Microsoft® Windows® and gain complete 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.
    • Supported Operating System

      Windows XP 64-bit

        1. Click the Download button on this page to start the download, or choose a different language from the drop-down list and click Go.
        2. Do one of the following:
          • To start the installation immediately, click Open or Run this program from its current location.
          • To copy the download to your computer for installation at a later time, click Save or Save this program to disk.
      • Other critical security updates are available: To find the latest security updates for you visit Windows Update and click "Express Install." To have the latest security updates delivered directly to your computer, visit Protect your PC and follow the 3 easy steps to ensure you’re protected.