.NET framework 4.0 installation failure solution

Microsoft's framework program, a lot of software is developed based on this framework, so many software should also be installed in the .net framework 4.0 to run, but many friends will fail to install, here is You introduce a solution. Download and open the installation. Check the license terms and click Install. An installation progress bar appears. This will be prompted when the installation is complete. If the installation fails, “Installation is not completed” will appear. The progress bar will roll back. Solution: Open the Start menu - Run - Enter CMD - Enter, enter net stop WuAuServ in the CMD commander, and press Enter. Open the Start menu - Run - enter %windir% Find the SoftwareDistribution folder in the C drive windows folder, change the name to SDold Open the Start menu - Run - enter net start WuAuServ Open the Start menu - Run - enter regedit Find the registry HKEY_LOCAL_MACHINESOFWAREMicrosoftInternet ExplorerMAIN right Permissions. Check the full control permissions. After setting up the .net framework 4.0, it will be completed normally.