安装 .NET 3.5
安装 .NET 3.5
不知道微软是出于什么目的，安装个 .NET 3.5，搞得异常复杂。
Dism /online /get-featureinfo /featurename:NetFx3
Dism /online /enable-feature /featurename:NetFx3 /All
Dism /online /enable-feature /featurename:NetFx3 /All /LimitAccess /Source:D:\sources\sxs
在 Windows 2012 上
Get-WindowsFeature –name NET-Framework-Core
Install-WindowsFeature –name NET-Framework-Core
Install-WindowsFeature –name NET-Framework-Core –source D:\sources\sxs
在 Windows 8 上
Get-WindowsOptionalFeature –Online –FeatureName NetFx3
Enable-WindowsOptionalFeature –Online –FeatureName NetFx3 –All
Enable-WindowsOptionalFeature –Online –FeatureName NetFx3 –All -LimitAccess -Source D:\sources\sxs
说明：
/All to enable all parent features of the specified feature
/LimitAccess to prevent DISM from contacting WU/WSUS
/Source to specify the location of the files needed to restore the feature.
