During the installation of .NET Framework 4.6.2, I got an error:

&gt; .NET Framework installation failed: -2146762486. A certificate chain
&gt; could not be built to a trusted root authority


A solution to the above-mentioned error is given at this [MSDN Blog link][1], which says to do the following steps:

**1.**  Download the certificate http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt  locally (Example: C:\Temp)

**2.** You can use the certmgr.exe utility to add the certificate by using the command line. For more information, see the Certmgr.exe (Certificate Manager Tool) topic at MSDN.

**3.** Open an admin command prompt and run this command: certmgr.exe /add  C:\Temp\MicRooCerAut2011_2011_03_22.cer /s /r localMachine root

**4.** Next, try installing the patch KB3135996 or KB3136000


**MY QUESTION:**

The installation of .NET framework 4.6.2 has to be done on several production systems so, ***are the above-mentioned steps standard***? I mean, ***could it create problem to install the same certificate on several systems***? When the systems will be connected to the internet at some point, could it create conflict?

**PS:** Solving this problem (managing certificates) by connecting the systems to the Internet is not an option for me since the whole process must be **offline**.

  [1]: https://blogs.msdn.microsoft.com/vsnetsetup/2016/03/28/a-certificate-chain-could-not-be-built-to-a-trusted-root-authority-2/

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A certificate chain could not be built to a trusted root authority