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811493: Security Update (Windows XP 64-bit Edition)

A security issue has been identified that could allow an attacker to compromise a computer running Microsoft® Windows® XP 64-bit Edition and gain complete control over it. An attacker would need the ability to log onto the computer locally to carry out an attack. You can help protect your computer by installing this update from Microsoft.

For more information, read the associated Microsoft security bulletin. (This site may be in English.)

System Requirements
This update applies to Windows XP 64-bit Edition.

How to use
You may have to restart your computer to complete the installation.

How to uninstall

1. Click Start, and then click Control Panel.
2. Double-click Add/Remove Programs.
3. Do one of the following:
   - If you are running Windows XP SP1, select Windows XP (SP2) Q811493
   - If you are running Windows XP, select Windows XP (pre-SP1) [See Q811493 for more information]
4. Click Change/Remove to uninstall.

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