Security Update for Windows XP x64 Edition (KB928255)
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.
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.
Operating Systems: Windows XP Professional x64 Edition
- To start the download, click the Download button at the top of this page 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.