Windows System Assessment Tool
（重定向自Windows Experience Index）
The Windows System Assessment Tool (WinSAT) is a module of Microsoft Windows Vista, Windows 7 and Windows 8 that is available in the Control Panel under Performance Information and Tools (except in Windows 8.1). It measures various performance characteristics and capabilities of the hardware it is running on and reports them as a Windows Experience Index (WEI) score. The WEI includes five subscores: processor, memory, 2D graphics, 3D graphics, and disk; the basescore is equal to the lowest of the subscores and is not an average of the subscores. WinSAT reports WEI scores on a scale from 1.0 to 5.9 for Windows Vista, 7.9 for Windows 7, and 9.9 for Windows 8.