If Nero Start fails to install Microsoft .NET Framework 4.7.2 in Update Center, you could try the following methods to solve it.


Solution 1

Download .NET Framework 4.7.2 from Microsoft website and manually install it: https://dotnet.microsoft.com/download/dotnet-framework/thank-you/net472-offline-installer


If the installation of Microsoft .NET Framework 4.7.2 still fails, and the reason is ‘A certificate chain could not be built to a trusted root authority’, please check the solution in the article below: 

https://wiki.autocountsoft.com/wiki/Troubleshooting:_Install_.NET_Framework_failed_-_A_certificate_chain_could_not_be_built_to_a_trusted_root_authority


Solution 2

If none of the above methods solve the problem, please make sure that your Microsoft Windows version meets the system requirements for installing Microsoft .NET Framework 4.7.2.


You can find the minimum system requirements for Microsoft .NET Framework 4.7.2  in the article below:

https://docs.microsoft.com/en-us/dotnet/framework/get-started/system-requirements


If your Microsoft Windows version does not meet the minimum requirements, please upgrade it before installing Microsoft .NET Framework 4.7.2.