The digital signature on certain files that are produced and signed by Microsoft expires prematurely on a computer that is running Windows 8 and Windows Server 2012.
This issue is also described in Microsoft Security Advisory 2749655.
This update contains correctly signed versions of the files. Additionally, this update improves .NET Framework 4.5 files and several core operating system components.
For more information about Microsoft Security Advisory 2749655, go to the following Microsoft website:
How to obtain this update
This update is available from Windows Update.
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
All supported x86-based versions of Windows 8
All supported x64-based versions of Windows 8
All supported x64-based versions of Windows Server 2012
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
To apply this update, you must be running Windows 8 or Windows Server 2012.
To apply this update, you do not have to make any changes to the registry.
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.
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