.net framework4.0安装失败

Question

安装失败，然后回滚。
这个是日志：

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OS Version = 6.1.7601, Platform 2, Service Pack 1
OS Description = Windows 7 - x64 Ultimate Edition Service Pack 1
CommandLine = E:\3ebf8f4323af55ba8276dcd77e4ad3\\Setup.exe /x86 /x64
Using Simultaneous Download and Install mechanism
Operation: Installing
Package Name = Microsoft .NET Framework 4 Setup
Package Version = 4.0.30319
User Experience Data Collection Policy: Disabled
Number of applicable items: 9
Exe (E:\3ebf8f4323af55ba8276dcd77e4ad3\SetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
Exe (E:\3ebf8f4323af55ba8276dcd77e4ad3\Windows6.1-KB958488-v6001-x64.msu) failed with 0x240006 - (null).
Exe (E:\3ebf8f4323af55ba8276dcd77e4ad3\SetupUtility.exe) succeeded.
Exe Log File: dd_SetupUtility.txt
MSI (E:\3ebf8f4323af55ba8276dcd77e4ad3\netfx_Core_x64.msi) Installation failed. Msi Log: Microsoft .NET Framework 4 Setup_20160329_183718940-MSI_netfx_Core_x64.msi.txt
Final Result: Installation failed with error code: (0x80070643), "安装时发生严重错误 " (Elapsed time: 0 00:02:00).

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网上的方法都试遍了无效，求解。。有的说是以前暗转过，用工具卸载了以前的，试过无效。也试过修改windows文件夹下的文件，也无效。

Answer 1

本身就自带net4，而且卸载不干净，你这种问题除了装个高版本没别的办法