求vs2010安装失败的解决办法
win7系统的x86机子，已经安装了vs2005，现在想增加安装一个vs2010，但是安装失败，错误日志复制在下面：
[08/01/13,09:14:12] Microsoft .NET Framework 4: [2] Error code -2147221231 for this component means "ClassFactory 无法供应请求的类
"
[08/01/13,09:14:12] Microsoft .NET Framework 4: [2] Component Microsoft .NET Framework 4 returned an unexpected value.
[08/01/13,09:14:12] Microsoft .NET Framework 4: [2] Return from system messaging: ClassFactory 无法供应请求的类
[08/01/13,09:14:14] VS70pgui: [2] DepCheck indicates Microsoft .NET Framework 4 is not installed.
[08/01/13,09:14:14] VS70pgui: [2] DepCheck indicates Microsoft .NET Framework 4 简体中文语言包 was not attempted to be installed.
[08/01/13,09:14:15] VS70pgui: [2] DepCheck indicates Microsoft Visual F# 2.0 Runtime was not attempted to be installed.
[08/01/13,09:14:15] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio Macro Tools was not attempted to be installed.
[08/01/13,09:14:15] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio Macro Tools CHS 语言包 was not attempted to be installed.
[08/01/13,09:14:15] VS70pgui: [2] DepCheck indicates TFS 对象模型(x86) was not attempted to be installed.
[08/01/13,09:14:15] VS70pgui: [2] DepCheck indicates .NET Framework 4 Multi-Targeting Pack was not attempted to be installed.
[08/01/13,09:14:15] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Professional - CHS was not attempted to be installed.
[08/01/13,09:14:16] VS70pgui: [2] DepCheck indicates Microsoft Web 部署工具(x86) was not attempted to be installed.
[08/01/13,09:14:16] VS70pgui: [2] DepCheck indicates Microsoft ASP.NET MVC 2 - Visual Studio 2010 工具 was not attempted to be installed.
[08/01/13,09:14:16] VS70pgui: [2] DepCheck indicates Microsoft ASP.NET MVC 2 - Visual Studio 2010 工具语言包 - 简体中文 was not attempted to be installed.
[08/01/13,09:14:16] VS70pgui: [2] DepCheck indicates Microsoft ASP.NET MVC 2 was not attempted to be installed.
[08/01/13,09:14:16] VS70pgui: [2] DepCheck indicates Microsoft ASP.NET MVC 2 语言包 - 简体中文 was not attempted to be installed.
[08/01/13,09:14:16] VS70pgui: [2] DepCheck indicates Microsoft Silverlight was not attempted to be installed.
[08/01/13,09:14:16] VS70pgui: [2] DepCheck indicates Microsoft Silverlight 3 SDK was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Tools for Office Runtime (x86) was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Microsoft Office 开发人员工具(x86) was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Microsoft Office 开发人员工具(x86)语言包 - 简体中文 was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Dotfuscator 软件服务 - 社区版 was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates 用于 Visual Studio 2010 的 Crystal Reports 模板 was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Tools for Office Runtime (x86)语言包 - CHS was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Dotfuscator 软件服务 - 社区版语言包 was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Microsoft Visual F# 2.0 Runtime 语言包 - CHS was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Microsoft SQL Server Compact 3.5 SP2 (x86)简体中文 was not attempted to be installed.
[08/01/13,09:14:17] VS70pgui: [2] DepCheck indicates Visual Studio 2010 Tools for SQL Server Compact 3.5 SP2 简体中文 was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft Sync Framework Runtime 1.0 版(x86) CHS was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft Sync Services for ADO.NET 2.0 版(x86) CHS was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft Sync Framework Services 1.0 版(x86) CHS was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft Sync Framework SDK 1.0 版(x86) CHS was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft SQL 发布向导 1.4 was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 系统 CLR 类型 was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 管理对象 was not attempted to be installed.
[08/01/13,09:14:18] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 Express (x86)升级 was not attempted to be installed.
[08/01/13,09:14:19] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 数据层应用程序框架 was not attempted to be installed.
[08/01/13,09:14:19] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 数据层应用程序项目 was not attempted to be installed.
[08/01/13,09:14:19] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 Transact-SQL 语言服务 was not attempted to be installed.
[08/01/13,09:14:19] VS70pgui: [2] DepCheck indicates Microsoft SharePoint 开发人员工具 was not attempted to be installed.
[08/01/13,09:14:19] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 ADO.NET Entity Framework Tools was not attempted to be installed.
[08/01/13,09:14:19] VS70pgui: [2] DepCheck indicates Microsoft Help 查看器 1.0 x86 was not attempted to be installed.
[08/01/13,09:14:19] VS70pgui: [2] DepCheck indicates Microsoft Help 查看器 1.0 语言包 x86 was not attempted to be installed.
