How to solve the .NET framework 4.0 installation failure under Win7 system?

Under Win7 system, when installing .NET framework 4.0, it always prompts that the installation failed. The premise of a lot of software installation is that you need to configure the .NET framework 4.0 first. If the .NET framework 4.0 fails to install, you can't install some programs. How to solve this? Below, Xiaobian will introduce the solution to you.

Details

1. Locate the installation package and double-click to install it.

2. Click Install to accept the license terms.

3. Installation Tips dual progress bar, the installation is successful you will be prompted to install successfully.

4. installation fails, the installation progress bar will become the installation rollback bar, you will be prompted installation is not completed.

Solution:

1. Start & mdash; & mdash; run & mdash; & mdash; Input cmd & mdash; & mdash; Enter & mdash; & mdash; input window opening net stop wuAuServ

2. start & mdash; & mdash; run & mdash; & mdash; enter% windir%

3. find a man named SoftwareDistribution folder, it Renamed to SDold

4.Start ——Run ——Enter cmd——Enter ——Enter net start in the window that opens WuAuServ

5. start & mdash; & mdash; run & mdash; & mdash; enter regedit & mdash; & mdash; enter

locate the registry, MAIN subkey \\ \\ Microsoft \\ under HKEY_LOCAL_MACHINE SOFWARE Internet Explorer, Right click on main, in the above menu, find "Edit" & rdquo;--&" permissions”, click on the words "complete control", you can safely install.

These are the .NET framework 4.0 solutions failed to install Win7 system under small series to tell you, if you have encountered such a problem, try the above procedure!