An update is available to update the digital signature on the files that are produced by Microsoft in Windows 8 and Windows Server 2012

Applies to: Windows RTWindows 8Windows 8 Enterprise


On a computer that is running Windows 8 and Windows Server 2012, the digital signature on the files that are produced and signed by Microsoft will expire prematurely. This issue is also described in Microsoft Security Advisory 2749655. This update contains correctly signed versions of files and updates the Microsoft .NET Framework 3.5 files.

For more information about Microsoft Security Advisory 2749655, go to the following Microsoft website:

More Information

Update information

How to obtain this update

Windows Update
This update is available from Windows Update.


To apply this update, you must be running Windows 8 or Windows Server 2012.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You do not have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates