Performance Information and Tools aka Windows Experience Index Page Problem in Vista

We all know about new feature “Windows Experience or Performance Index” in Windows Vista. Its a new feature which automatically calculates your system performance index based on the hardware you have. It can be between 0.1 to 9.9

“Windows Performance Index” is shown in “System Properties” which can be accessed by right-clicking on “My Computer” icon on Desktop and select “Properties” or from “Control Panel“.

Sometimes when you open Windows Experience / Performance window, you get a blank window showing 2-3 lines as following:

It doesnt show the performance details. Even it doesnt show any kind of help to fix it. So you are left clueless. But don’t worry, here is a solution to fix the issue:

1. Open regedit and goto following keys one by one:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Control Panel\Performance Control Panel
HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Windows\Control Panel\Performance Control Panel

2. In right-side pane, if you see a DWORD value “PerfCplEnabled“. Delete it. Restart your system and now your problem should be fixed.

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