About this update 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 . Method 1: Windows Update This update is available from Windows Update . Method 2: Microsoft Download Center The following files are available for download from the Microsoft Download Center: Operating system All supported x86-based versions of Windows 7 Download the package now. All supported x64-based versions of Windows 7 Download the package now. 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. Registry information To apply this update, you do not have to make any changes to the registry. Restart requirement You may have to restart the computer after you apply this update. Update replacement information This update does not replace a previously released update. File information 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: Version Product Milestone Service branch 6.1.760 1.18xxx Windows 7 SP1 GDR 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: 6.1.760 1.18xxx 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. 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. For all supported x86-based versions of Windows 7 Core-fundamentals-clientperformance-perftrack.ptxml Powertracker.dll For all supported x64-based versions of Windows 7

Core-fundamentals-clientperformance-perftrack.ptxml Powertracker.dll Additional file information Additional file information for Windows 7 Additional files for all supported x86-based versions of Windows 7 X86_5236e8a1202b7165b48152ee4ae5a693_31bf3856ad364e35_6.1.7601.18700_none_574bc0ee8f83836a.manifest X86_65231470a62359e7f7a7e37652f7e02e_31bf3856ad364e35_6.1.7601.18700_none_36ce30c831c184da.manifest X86_8f2df887b065ebf40df03d1725891680_31bf3856ad364e35_6.1.7601.18700_none_425790f00df52369.manifest X86_microsoft-windows-c..rformance-perftrack_31bf3856ad364e35_6.1.7601.18700_none_5de15c29a91e404c.manifest X86_microsoft-windows-c..rmance-powertracker_31bf3856ad364e35_6.1.7601.18700_none_2774d2ca52bbe353.manifest X86_microsoft-windows-d..frastructure-client_31bf3856ad364e35_6.1.7601.18700_none_4e18b1bc01273cb5.manifest Additional files for all supported x64-based versions of Windows 7 Amd64_5236e8a1202b7165b48152ee4ae5a693_31bf3856ad364e35_6.1.7601.18700_none_b36a5c7247e0f4a0.manifest Amd64_54b1bce861433daa719d6ce0a077bf8a_31bf3856ad364e35_6.1.7601.18700_none_c4c8f523d3dc6794.manifest Amd64_8972ea21a95722c5b3916e214436ccbe_31bf3856ad364e35_6.1.7601.18700_none_f58cf4d62f66b5ba.manifest Amd64_a586ecf509df1aebc576bacc0859dcdd_31bf3856ad364e35_6.1.7601.18700_none_2566478b0725bb9c.manifest Amd64_e6a6dbd40d138766f5b91236a1d76626_31bf3856ad364e35_6.1.7601.18700_none_fe84f2fb9f22a13e.manifest Amd64_microsoft-windows-c..rformance-perftrack_31bf3856ad364e35_6.1.7601.18700_none_b9fff7ad617bb182.manifest Amd64_microsoft-windows-c..rmance-powertracker_31bf3856ad364e35_6.1.7601.18700_none_83936e4e0b195489.manifest Amd64_microsoft-windows-d..frastructure-client_31bf3856ad364e35_6.1.7601.18700_none_aa374d3fb984adeb.manifest X86_microsoft-windows-d..frastructure-client_31bf3856ad364e35_6.1.7601.18700_none_4e18b1bc01273cb5.manifest See the terminology that Microsoft uses to describe software updates. Need more help? Want more options? Explore subscription benefits, browse training courses, learn how to secure your device, and more. Microsoft 365 subscription benefits Microsoft 365 training Microsoft security Accessibility center Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge. Ask the Microsoft Community Microsoft Tech Community Windows Insiders Microsoft 365 Insiders Thank you for your feedback!