.NET Framework has not been installed because a certificate chain could not be built to a trusted root authority
Issue
This blog post describes how to fix the error: .NET Framework 4.6.2 has not been installed because a certificate chain could not be built to a trusted root authority on Windows 7 and Server 2008 R2.Cause
This error can occur when installing the .NET Framework 4.7/4.6.2/4.6.1/4.6 or 4.5.2 on Windows Server 2008 SP2, Windows 7 SP1 and Windows Server 2008 R2 SP1 when an internet connection is not available.Resolution
Download and import the latest Microsoft root certificate into Trusted Root Certification Authorities on the Local Machine using the Certificates snap-in in MMC.Please read the following Microsoft article for different methods of doing this:
https://support.microsoft.com/en-gb/help/3149737/known-issue-for-security-update-3136000-for-the-net-framework-4-6-1-4
Edit: The above link is currently broken. However, the Microsoft root certificate can be downloaded from this page: https://www.microsoft.com/pkiops/Docs/Repository.htm
e.g. (right click, save as) http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt
Video
Watch a video describing how to fix
a certificate chain could not be built to a trusted root authority:
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