Microsoft Download Center Archive
 | Security Update for Windows Vista for x64-based Systems (KB958644) |
A security issue has been identified that could allow an authenticated remote attacker to compromise your Microsoft Windows-based system and gain control over it.
- A security issue has been identified that could allow an authenticated remote attacker to compromise your Microsoft 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 update is provided to you and licensed under the Windows Vista License Terms.
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Files
 | Status: DeletedThis 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. |
| File | Size |
|---|---|
 Windows6.0-KB958644-x64.msuSHA1: 8ed6ad905f4ceb8cb83244206c9e9612fecc9404 | 679 KB |
System Requirements
Operating Systems: Windows Vista 64-bit Editions Service Pack 1, Windows Vista Business 64-bit edition, Windows Vista Enterprise 64-bit edition, Windows Vista Home Basic 64-bit edition, Windows Vista Home Premium 64-bit edition, Windows Vista Ultimate 64-bit edition
Installation Instructions
- 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.