从微软Vista系统开始，微软为系统引入了一项性能信息和工具功能，用来检测系统体验评分，这项功能可以用于简单的电脑硬件性能的参考，一直延续Windows7，Windows8系统，但是到了Win8.1预览版以及Win8.1正式版后，这项功能直接默认隐藏，不再直观向用户显示。

为什么说是隐藏呢?

因为系统体验评分功能，就是WinSAT，用于Vista，Win7，Win8的性能信息和工具功能。而升级到Win8.1后，系统属性里面不再显示系统体验评分，但是WinSAT功能依旧存在于系统，支持将当前的系统评分分值直接以XML文本记录。

如何找回当前的系统体验评分信息?

方法一：适合高级用户

一、win+X，选择(以管理员身份)命令符，输入winsat -help，可查看到和Windows系统评估工具相关的命令行用法：

二、继续输入winsat formal，启动Windows系统评估工具

三：参考C:WindowsPerformanceWinSATDataStore路径，直接查找XML文本记录，默认有七个评分记录，分别为CPU，Disk，DWA，Graphics3D，GraphicsMedia，Mem，Formal。其中Formal.xml是对系统体验评分的汇总。

MemoryScore5.2对应内存RAM

CpuScore5.2对应处理器

GraphicsScore4对应图形性能

Dx9SubScore4.2对应DX9性能

GamingScore4.2对应游戏图形性能

DiskScore5.9对应主磁盘性能

方法二：适合普通用户

原理：添加PerfCenterCPL.dll应用程序扩展到Win8.1系统Windows目录下，并手动加载。即可在系统中添加一项性能信息和工具功能，直观显示Win8.1的系统各项指标的性能评分。

步骤：

1、下载PerfCenterCPL.dll应用程序扩展合集：

并复制system32和sysWOW64所有文件到Win8.1系统Windows目录下，支持32位系统和64位系统。

2、复制以下内容，另存为PerfCenter.reg，导入注册表，添加性能信息和工具功能

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOTCLSID{78F3955E-3B90-4184-BD14-5397C15F1EFC}]

@="Performance Information and Tools"

"System.Software.TasksFileUrl"="Internal"

"InfoTip"=hex(2):40,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,

6f,00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,

00,50,00,65,00,72,00,66,00,43,00,65,00,6e,00,74,00,65,00,72,00,43,00,50,00,

4c,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,32,00,23,00,69,00,6d,00,6d,00,75,

00,74,00,61,00,62,00,6c,00,65,00,31,00,00,00

"LocalizedString"=hex(2):40,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,

6f,00,6f,00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,

00,5c,00,50,00,65,00,72,00,66,00,43,00,65,00,6e,00,74,00,65,00,72,00,43,00,

50,00,4c,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,31,00,23,00,69,00,6d,00,6d,

00,75,00,74,00,61,00,62,00,6c,00,65,00,31,00,00,00

"System.ApplicationName"="Microsoft.PerformanceInformationAndTools"

"System.ControlPanel.Category"=dword:00000000

[HKEY_CLASSES_ROOTCLSID{78F3955E-3B90-4184-BD14-5397C15F1EFC}DefaultIcon]

@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,

00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,50,00,65,00,

72,00,66,00,43,00,65,00,6e,00,74,00,65,00,72,00,43,00,50,00,4c,00,2e,00,64,

00,6c,00,6c,00,2c,00,2d,00,31,00,00,00

[HKEY_CLASSES_ROOTCLSID{78F3955E-3B90-4184-BD14-5397C15F1EFC}InProcServer32]

@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,

00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,00,68,00,

64,00,6f,00,63,00,76,00,77,00,2e,00,64,00,6c,00,6c,00,00,00

"ThreadingModel"="Apartment"

[HKEY_CLASSES_ROOTCLSID{78F3955E-3B90-4184-BD14-5397C15F1EFC}Instance]

"CLSID"="{328B0346-7EAF-4BBE-A479-7CB88A095F5B}"

[HKEY_CLASSES_ROOTCLSID{78F3955E-3B90-4184-BD14-5397C15F1EFC}InstanceInitPropertyBag]

"ResourceID"=dword:00000064

"ResourceDLL"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,

00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,

50,00,65,00,72,00,66,00,43,00,65,00,6e,00,74,00,65,00,72,00,43,00,50,00,4c,

00,2e,00,64,00,6c,00,6c,00,00,00

[HKEY_CLASSES_ROOTCLSID{78F3955E-3B90-4184-BD14-5397C15F1EFC}ShellFolder]

"Attributes"=dword:a0000000

"WantsParseDisplayName"=""

3、复制以下内容，另存为WinSAT.Bat，批量运行，开始系统体验评分测试。

@echo off

regedit /s PerfCenter.reg

regsvr32 /s "%SystemRoot%System32PerfCenterCPL.dll"

regsvr32 /s "%SystemRoot%System32WinSATAPI.dll"

regsvr32 /s "%SystemRoot%System32diagperf.dll"

regsvr32 /s "%SystemRoot%System32perftrack.dll"

regsvr32 /s "%SystemRoot%SysWow64PerfCenterCPL.dll"

regsvr32 /s "%SystemRoot%SysWow64WinSATAPI.dll"

4、运行后，打开控制面板，选择小类别，即可找到“性能信息和工具功能”，打开即可显示系统当前的系统评分内容。

▼终于找回隐藏的系统体验指数