WIN7 64 bit误删NET Framework 3.5和NET Framework 2，如何重新安装？

Question

前几日清理电脑不用的程序，发现NET Framework有多个版本，以为低版本的没有用处就用360安全卫士中的软件管家删除了NET Framework 3.5，NET Framework 2及其其他组件，结果发现对我工作非常重要的软件无法运行，需要重新安装NET Framework 3.5，NET Framework 2等软件。但是从微软官网下载的安装包无法安装，在添加/删除windows功能中选择/取消NET Framework 3.5选项多次，依然无效。请教电脑高手应该怎么办？非常感谢！

Answer 1

下载NET Framework清理工具，把残存文件都清理掉，重启后按着从低到高的顺序安装试试

Answer 2

谢谢您的建议，谢谢！我先使用dotnetfx_cleanup_tool卸载所有的net framework后，从微软官网下载net framework1.1可以安装，没问题。从官网下载安装net framework2，提示2已经集成于win7，不让安装。从微软官网下载net framework3.5 SP1的完整包和在线安装包，双击后开始安装，但是安装到一半遇到错误。同时我也在“打开关闭功能”里面，打开net framework3.5，重启再安装。然后又在“打开关闭功能”里面，关闭net framework3.5，再安装还是失败。错误日志如下：

[11/04/13,10:55:05] Microsoft .NET Framework 3.5 (x64) 'package': [2] Error: Installation failed for component Microsoft .NET Framework 3.5 (x64) 'package'. MSI returned error code 1603

[11/04/13,10:58:38] Microsoft .NET Framework 3.0SP1 (x64) (CBS): [2] CBS Component is marked to be uninstalled but CBSPackageName is not authored - CCBSComponent::SetManager()

[11/04/13,10:58:38] Microsoft .NET Framework 3.0SP1 (x64) (CBS): [2] CBS Component can't be uninstalled as CBSPackageName is not authored - CCBSComponent::SetManager()

[11/04/13,10:58:40] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5 (x64) 'package' is not installed.

[11/04/13,10:58:40] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5LP(x64) - CHS is not installed.

[11/04/13,11:02:13] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5 SP1。

[11/04/13,11:02:13] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:02:57] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5 SP1。

[11/04/13,11:02:57] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:04:39] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5 SP1。

[11/04/13,11:04:39] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:06:13] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5 SP1。

[11/04/13,11:06:13] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:09:50] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5 SP1。

[11/04/13,11:09:50] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:19:15] Microsoft .NET Framework 3.5 (x64) 'package': [2] Error: Installation failed for component Microsoft .NET Framework 3.5 (x64) 'package'. MSI returned error code 1603

[11/04/13,11:20:29] Microsoft .NET Framework 3.0SP1 (x64) (CBS): [2] CBS Component is marked to be uninstalled but CBSPackageName is not authored - CCBSComponent::SetManager()

[11/04/13,11:20:29] Microsoft .NET Framework 3.0SP1 (x64) (CBS): [2] CBS Component can't be uninstalled as CBSPackageName is not authored - CCBSComponent::SetManager()

[11/04/13,11:20:31] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5 (x64) 'package' is not installed.

[11/04/13,11:20:31] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5LP(x64) - CHS is not installed.

[11/04/13,11:39:12] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5 SP1。

[11/04/13,11:39:12] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:39:40] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5 SP1。

[11/04/13,11:39:40] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:40:08] VS Scenario: [2] CSupportedPlatformCheck failed : 必须使用“控制面板”中的“打开或关闭 Windows 功能”安装或配置 Microsoft .NET Framework 3.5。

[11/04/13,11:40:08] VS Scenario: [2] Failed to pass the Warnings/Blocks checks in CVSScenario::Start()

[11/04/13,11:57:51] Microsoft .NET Framework 2.0a x64: [2] Error: Installation failed for component Microsoft .NET Framework 2.0a x64. MSI returned error code 1603

[11/04/13,11:58:10] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0a x64 is not installed.

[11/04/13,12:00:29] Microsoft .NET Framework 2.0a x64: [2] Error: Install package not found: ASPNET.msp

[11/04/13,12:00:29] Microsoft .NET Framework 2.0a x64: [2] Error: No valid install package found for component Microsoft .NET Framework 2.0a x64

[11/04/13,12:00:29] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147467259.

[11/04/13,12:00:36] Microsoft .NET Framework 3.0a x64: [2] Error: Install package not found: WCF.msp

[11/04/13,12:00:36] Microsoft .NET Framework 3.0a x64: [2] Error: No valid install package found for component Microsoft .NET Framework 3.0a x64

[11/04/13,12:00:37] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147467259.

[11/04/13,12:00:37] Microsoft .NET Framework 2.0a x64: [2] Error: Install package not found: ASPNET.msp

[11/04/13,12:00:37] Microsoft .NET Framework 2.0a x64: [2] Error: No valid install package found for component Microsoft .NET Framework 2.0a x64

[11/04/13,12:00:37] setup.exe: [2] ISetupComponent::Pre/Post/Install() failed in ISetupManager::InternalInstallManager() with HRESULT -2147467259.

[11/04/13,12:00:38] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0a x64 is not installed.

[11/04/13,12:00:38] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0a x64 is not installed.

[11/04/13,12:07:26] Microsoft .NET Framework 3.0SP1 (x64) (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 3.0SP1 (x64) (CBS). MSI returned error code -2145124329

[11/04/13,12:07:45] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0SP1 (x64) (CBS) is not installed.

[11/04/13,12:07:45] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5LP(x64) - CHS is not installed.

[11/04/13,12:19:26] Microsoft .NET Framework 3.0SP1 (x64) (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 3.0SP1 (x64) (CBS). MSI returned error code -2145124329

[11/04/13,12:19:44] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.0SP1 (x64) (CBS) is not installed.

[11/04/13,12:19:44] WapUI: [2] DepCheck indicates Microsoft .NET Framework 3.5LP(x64) - CHS is not installed.

非常感谢您的解答！请问是不是富士通OEM的Win7 64 位 家庭高级版 SP1就不允许用户自己安装Net framework3.5吗？