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Installing .NET Framework 4.7.1 on Windows Server 2016 as a prerequisite for patching Exchange 2016 CU8 to CU12 remains stuck at: “File security verification: All files were verified successfully.”

Problem You’re attempting to patch an Exchange Server 2016 CU8 environment to the latest CU12 and one of the prerequisites is to install .NET Framework 4.7.1 so you proceed to download the offline installer executable but notice that it never completes. Solution As with my

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Installing .NET Framework 4.7.1 on Windows Server 2012 as a prerequisite for patching Exchange 2016 CU8 to CU12 remains stuck at: “File security verification: All files were verified successfully.”

Problem You’re attempting to patch an Exchange Server 2016 CU8 environment to the latest CU12 and one of the prerequisites is to install .NET Framework 4.7.1 so you proceed to download the offline installer executable, run the install but notice that it remains stuck at:

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