Windows System Assessment Tool (WINSAT): Built-in performance benchmarking tool

Windows System Assessment Tool or WinSAT.exe in a built-in performance benchmarking tool that lets Windows users measure the performance capabilities of the computer. This tool was introduced on client computers, starting with Windows Vista and is available on Windows 8 too.

Windows System Assessment Tool – WINSAT

Using WinSAT, you can measure the following components of your Windows computer:

  • CPU
  • Memory
  • Direct3D assessment
  • Video card/Gaming graphics/Media/Media Foundation assessment
  • Primary disk or storage
  • Features.

To use the Windows System Assessment Tool, open an elevated command prompt, type winsat /? and hit Enter. This will display Help and show you all the arguments, switches and options available.

Windows System Assessment Tool

Here is a list of syntax and assessments available. For more information, you can visit TechNet.

winsat dwm Aero desktop effects
winsat d3d Direct 3D applications
winsat mem Simulate large memory to memory buffer copies
winsat disk Disk drives performance
winsat cpu CPU performance
winsat media Video encoding and decoding using the Direct Show framework
winsat mfmedia Video decoding using Media Foundation framework
winsat features System information
winsat formal Pre-defined assessments. Results saved as XML file in %systemroot%\performance\winsat\datastore

In Windows 18, Windows 7 and Windows Vista, the Windows System Assessment Tool is also used in calculating the Windows Experience Index.  Although the command line winsat or Windows System Assessment Tool still exists in Windows 8.1, the Windows Experience Index score is not displayed in Windows 8.1. But there is a workaround for this too.

Microsoft has said that WinSAT may be altered or unavailable for releases after Windows 8.1 – but this is not sure.

Windows System Assessment Tool has stopped working

If WinSAT or Windows System Assessment Tool has stopped working on your Windows, run the system file checker sfc /scannow and see if it helps. You could also boot in Safe Mode or Clean Boot State and see if it works, when in this state.

Hope you find the post useful.

Posted by on , in Category Windows with Tags
Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.

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