This update performs diagnostics in Windows 7 Service Pack 1 (SP1) in order to determine whether performance issues may be encountered when the latest Windows operating system is installed. Telemetry is sent back to Microsoft for those computers that participate in the Windows Customer Experience Improvement Program (CEIP). This update will help Microsoft and its partners deliver better system performance for customers who are seeking to install the latest Windows operating system.
How to obtain this update
You can obtain this update by using one of the following methods. Before you apply this update, notice that this update has prerequisites.
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.
Update detail information
To install this update, you must install Service Pack 1 for Windows 7.
To apply this update, you do not have to make any changes to the registry.
You may have to restart the computer after you apply this update.
Update replacement information
This update does not replace a previously released update.
The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 file information and notes
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.