Microsoft introduced the Windows Experience Index in Windows Vista to benchmark the performance of the computer and compute base scores which customers could use to determine whether their device was fast enough to run software.
Scores ranged from 1.0 to 5.9 on Windows Vista and from 1.0 to 7.9 on Windows 7. While the test did benchmark and score individual components of the PC, for instance the graphics card or hard drive, a system's base score was always set to the lowest resulting subscore.
The Windows Experience Index is still part of newer versions of Windows but Microsoft removed the interface displaying the base scores.
While you can use PowerShell to compute the scores, they are returned as text only and not in an interface anymore as the GUI was retired by Microsoft.
The free portable program ExperienceIndexOK changes that by mimicking the look and feel of the original Windows Experience Index interface.
Scores of the previous benchmark that you ran on the system are displayed automatically on start. You may re-run the assessment at any time and use the same link at the bottom right to run the first benchmark if scores are not displayed in the interface.
ExperienceIndexOK spawns a command line interface which it uses to run the necessary commands. The window is closed in the end but scores may not be displayed outright as you need to click on the reload button to load the new scores (or restart the program).
The information displayed are identical. Each component is listed with its subscore. The information may be useful if you plan to upgrade the system as you can pick one of the weaker components for maximum gains.
There you also find listed the base score which was never really that useful considering that most games and software that you could purchase did not include minimum or recommended base scores.
The program ships with a couple of extras that you may find useful. You may save a screenshot of the scores for instance, or run system tools such as computer management or the Task Manager directly from the interface.
ExperienceIndexOK is compatible with all supported versions of Windows. It is available as a portable version that you can run from any location.
While it may not be overly useful, you may use it to compare components of the operating system, for instance before and after an upgrade, to find out how the system performance changed.
Generally speaking, it is better to use other benchmark programs for that task such as 3D Mark or PC Mark.
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