【转载】完美解决ThinkPad 在Win7系统下弹出USB等反应慢的方法

源地址：http://hi.baidu.com/longkin/blog/item/978d76bec4b78c0718d81f7e.html

相信各位使用过ThinkPad Win7系统的都有点很不爽的感觉，那就是“安全删除硬件及弹出媒体”时那龟速，打开“设备和打印机”时那龟速，实在是让大家受够了,今天把我的解决办法分享给大家,保证1.2秒内打开上述功能.

特别提示,

1、只适合用ThinkPad Win7的系统(不管是32位还是64位,也不管是什么语言的系统更不管是啥机型).

2、注意：确保“C:/ProgramData/Lenovo/LenovoTvtTools”下的文件都还在

造成慢的原因在于Lenovo ThinkVantage
Tools下的*.devicemetadata-ms文件与WIN7原有的文件有重复或冲突，该方法是将所有C:/ProgramData/Microsoft/windows目录下的*.devicemetadata-ms
文件先删除，再重新导入Lenovo ThinkVantage Tools下的*.devicemetadata-ms文件，就可以解决这个问题。

如果“C:/ProgramData/Lenovo/LenovoTvtTools”下的文件有丢失的，转到C:/ProgramData
/Microsoft/Windows/DeviceMetadataStore下各文件夹中把最大最新的devicemetadata-ms文件留着，
别的都删除即可。

如果“C:/ProgramData/Lenovo/LenovoTvtTools”下的文件还完整的将以下内容（蓝色部份）COPY到新建的文本文档然后另存为.bat 的文件运行即可，注销重登录后定生效。

@echo on

cd "c:/ProgramData/Lenovo/LenovoTvtTools"

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/en-US/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/cs-CZ/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/da-DK/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/de-DE/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/el-GR/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/es-ES/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/fi-FI/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/fr-FR/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/he-IL/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/hu-HU/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/it-IT/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/ja-JP/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/ko-KR/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/nb-NO/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/nl-NL/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/pl-PL/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/pt-BR/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/pt-PT/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/ru-RU/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/sl-SI/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/sv-SE/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/tr-TR/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/zh-CN/*.devicemetadata-ms

del /f /q C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/zh-TW/*.devicemetadata-ms

xcopy /Y ./en-US/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/en-US/*.devicemetadata-ms

xcopy /Y ./cs-CZ/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/cs-CZ/*.devicemetadata-ms

xcopy /Y ./da-DK/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/da-DK/*.devicemetadata-ms

xcopy /Y ./de-DE/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/de-DE/*.devicemetadata-ms

xcopy /Y ./el-GR/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/el-GR/*.devicemetadata-ms

xcopy /Y ./es-ES/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/es-ES/*.devicemetadata-ms

xcopy /Y ./fi-FI/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/fi-FI/*.devicemetadata-ms

xcopy /Y ./fr-FR/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/fr-FR/*.devicemetadata-ms

xcopy /Y ./he-IL/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/he-IL/*.devicemetadata-ms

xcopy /Y ./hu-HU/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/hu-HU/*.devicemetadata-ms

xcopy /Y ./it-IT/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/it-IT/*.devicemetadata-ms

xcopy /Y ./ja-JP/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/ja-JP/*.devicemetadata-ms

xcopy /Y ./ko-KR/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/ko-KR/*.devicemetadata-ms

xcopy /Y ./nb-NO/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/nb-NO/*.devicemetadata-ms

xcopy /Y ./nl-NL/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/nl-NL/*.devicemetadata-ms

xcopy /Y ./pl-PL/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/pl-PL/*.devicemetadata-ms

xcopy /Y ./pt-BR/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/pt-BR/*.devicemetadata-ms

xcopy /Y ./pt-PT/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/pt-PT/*.devicemetadata-ms

xcopy /Y ./ru-RU/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/ru-RU/*.devicemetadata-ms

xcopy /Y ./sl-SI/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/sl-SI/*.devicemetadata-ms

xcopy /Y ./sv-SE/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/sv-SE/*.devicemetadata-ms

xcopy /Y ./tr-TR/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/tr-TR/*.devicemetadata-ms

xcopy /Y ./zh-CN/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/zh-CN/*.devicemetadata-ms

xcopy /Y ./zh-TW/*.devicemetadata-ms C:/ProgramData/Microsoft/Windows/DeviceMetadataStore/zh-TW/*.devicemetadata-ms