Restore removed Windows 7 features in Windows 10/11

This serves as future reference to restore features in Windows 7 that were removed in Windows 10.

Performance Information and Tools

Copy the following files from Windows 8.0:

• C:\Windows\System32\PerfCenterCPL.dll
• C:\Windows\System32\(your locale code)\PerfCenterCPL.dll.mui

Export the following registry keys from Windows 7:

• HKCR\CLSID\{78F3955E-3B90-4184-BD14-5397C15F1EFC}
• HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ControlPanel\NameSpace\{78F3955E-3B90-4184-BD14-5397C15F1EFC}

Then finally run the following commands in an admin command prompt:

• regsvr32 C:\Windows\System32\PerfCenterCPL.dll

It can be accessed from the All Icons view of Control Panel. Check if WinSAT.exe is running with Task Manager to see if the assessment is running.

Windows Update Control Panel frontend

Copy the following files from Windows 8.1:

• C:\Windows\System32\wucltux.dll
• C:\Windows\System32\(your locale code)\wucltux.dll.mui

Export the following registry keys from Windows 8.1:

• HKCR\CLSID\{36eef7db-88ad-4e81-ad49-0e313f0c35f8}
• HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ControlPanel\NameSpace\{36eef7db-88ad-4e81-ad49-0e313f0c35f8}

Then finally run the following commands in an admin command prompt:

• regsvr32 C:\Windows\System32\wucltux.dll

It can be accessed from the All Icons view of Control Panel, or the System and Security category. It is non-functional.