Microsfot. NET Framework 4 Installation Failure solution

First of all, this method is also from Baidu to find, the sense of the same problem may be met with the same friend a little help, so posted out to share with everyone. My microsfot. NET Framework 4 installation did not succeed without a screenshot as follows:

To post an error code, please have the same error code in the friend reference.

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OS Version = 5.1.2600, Platform 2, Service Pack 3
OS Description = winxp-x86 Professional Service Pack 3

CommandLine = d:/d6d82a1105eaa9e6c52e05c240c232//setup.exe/x86/x64

Using simultaneous Download and Install mechanism

Operation:installing

Package Name = Microsoft. NET Framework 4 Client profile Setup
Package Version = 4.0.30319

User Experience Data Collection policy:usercontrolled

Number of applicable items:5

Final result:installation failed with error code: (0x80070643), "Fatal error during Installation" (Elapsed time:0 00:02:08).

The following are the solutions:

1. According to the combination of key win+r, open run, input cmd, enter, in the input net stop wuauserv, enter, that is, stop the update service;
2. Open the Windows folder in the C-packing directory, Locate the SoftwareDistribution folder and rename it to Sdold
3. According to the combination of key win+r, open run, input cmd, carriage return, in the input net start wuauserv, enter, that is, started the update service;
4.win+r, enter regedit, open the registry, and expand to Hkey_local_machine/software/microsoft/internet explorer/

, and  then on the left, right-click Main, permissions, and all user rights are set to full control, as shown below:

4. Installing the Microsfot. NET Framework 4 now seems to be a success.

Good luck to you.