我想试用 Visual Studio Lightswitch 11 的 90 天试用版，但我无法安装它。
我已经从 Microsoft 下载站点下载了完整的 ISO 安装程序。
安装程序显示的错误是：安装程序无法安装以下组件：Microsoft Visual Studio LightSwitch 2011 - ENU
日志文件显示以下内容：
[09/04/11,12:27:43] VS Scenario: [2] Error: CVSScenario::ExecuteEachBlocker returned false
[09/04/11,12:27:43] VS Scenario: [2] Error:There is a blocking condition met, the installer is blocking because of Section :
[09/04/11,12:27:43] VS Scenario: [2] Microsoft Visual Studio 2010 Professional
[09/04/11,12:28:05] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()
[09/04/11,14:27:18] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/04/11,14:27:21] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/04/11,14:39:31] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/04/11,14:39:33] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/04/11,19:12:42] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/04/11,19:12:44] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/04/11,19:15:41] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/04/11,19:15:43] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/04/11,19:43:03] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/04/11,19:43:05] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/04/11,20:01:16] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/04/11,20:01:18] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/04/11,21:57:41] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/04/11,21:57:42] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/05/11,00:26:20] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/05/11,00:26:22] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/05/11,00:49:27] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/05/11,00:49:29] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/05/11,02:54:59] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/05/11,02:55:01] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/05/11,03:07:01] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/05/11,03:07:03] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/05/11,10:51:49] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/05/11,10:51:51] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
[09/05/11,11:23:12] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147023293.
[09/05/11,11:23:14] SimpleUI: [2] DepCheck indicates Microsoft Visual Studio LightSwitch 2011 - ENU is not installed.
无论是否安装了 Visual Studio 并更新到 SP1。
我目前正在运行 Windows 7 Ultimate x64 SP1。
任何帮助是极大的赞赏。