Article ID: 932596 - Last Review: September 17, 2009 - Revision: 4.2

Microsoft Security Advisory: Update to improve Kernel Patch Protection

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INTRODUCTION

Microsoft has released a security advisory to announce that an update is available for the Kernel Patch Protection feature that is included with x64-based Windows operating systems. Kernel Patch Protection protects code and critical structures in the Windows kernel from modification by unknown code or data. This update adds checks to this protection for increased resiliency in Windows.

To view the security advisory, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/advisory/932596.mspx (http://www.microsoft.com/technet/security/advisory/932596.mspx)

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MORE INFORMATION

Update for Windows Vista, x64-based versions

http://www.microsoft.com/downloads/details.aspx?FamilyId=85039817-81FA-4DAE-B42C-E53C1015F7F4 (http://www.microsoft.com/downloads/details.aspx?FamilyId=85039817-81FA-4DAE-B42C-E53C1015F7F4)

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Update for Windows Server 2003, x64-based versions

http://www.microsoft.com/downloads/details.aspx?FamilyId=7C627ACF-F0ED-4102-B434-0324139A80EA (http://www.microsoft.com/downloads/details.aspx?FamilyId=7C627ACF-F0ED-4102-B434-0324139A80EA)

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Update for Windows XP Professional, x64-based versions

http://www.microsoft.com/downloads/details.aspx?FamilyId=308D0445-851D-4F78-89A6-0FDDB30B0682 (http://www.microsoft.com/downloads/details.aspx?FamilyId=308D0445-851D-4F78-89A6-0FDDB30B0682)

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Kernel Patch Protection: Frequently Asked Questions

http://www.microsoft.com/whdc/driver/kernel/64bitpatch_FAQ.mspx (http://www.microsoft.com/whdc/driver/kernel/64bitpatch_FAQ.mspx)

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Known issues with this update

After you install this update on a computer that is running an x64-based version of Windows Server 2003 or of the original release version of Windows Vista, the computer may randomly restart, and you may receive a Stop error message. The Stop error code may be 0x0000001E, 0x000000D1, or another Stop error code.

To resolve this problem, install hotfix 950772.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

950772 (http://support.microsoft.com/kb/950772/ ) A computer that is running an x64-based version of Windows Server 2003, of Windows Vista, or of Windows Server 2008 randomly restarts and then generates a Stop error

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