Recently, some friends have consulted the editor about how to solve the problem of .NET Framework 4.0 installation failure. Here is the .NET solution for everyone. Friends in need can learn more about how to solve the problem of Framework 4.0 installation failure.

.NET Framework4. Cannot be installed. First, determine what the problem is? Open the event viewer and check the reason for the installation failure.

The installation cannot be caused by insufficient permissions. Right-click the version of net frame you want to install and run as administrator.

​​Enter net stop WuAuServ in the running command line to stop the WuAuServ service;

                                                                                                                      Enter %windir% in the command line, opens the system widnows file, and renames the SoftwareDistribution file to SDold;

​ ​ Enter net start WuAuServ in the running command line to open the WuAuServ service.

Use the net frame removal tool to remove the residue. Select the version you want to clean from the "product to cleanup" checkbox and click "cleanup now" button to clear.

Use net frame repair tool to repair it. Check the box to agree to the above terms, click the "next" button, follow the prompts, and continue the "next" operation without repeating the introduction.

The above is all about how to solve the problem of .NET Framework 4.0 installation failure. I hope it can be helpful to everyone!