Net Framework 4.7.2 Installs successfully but doesn't?

Question

Hi there,
I'm having a bit of an issue with NF 4.7.2 not giving me any indication of failing but then not actually appearing on our server at all.

I've tried using:

• Offline Installer
• Web installer
• Deploying Desktop Central 10 package

All of which give the "Net framework 4.7.2 has been successfully installed, please reboot your computer" etc... message.

On a reboot however, Net Framework is still showing as 4.7.1 in the registry, powershell and the accompanying update 4054542 is not shown as installed.

I'm stuck here and would appreciate anyone's help in finding out what's going on with this and potentially how to solve it.

I want to get our exchange updated to CU23 (I know it's been a while) but need to get this installed first.

Windows Server 2012 (not R2)

Thanks in advance.



Answer 1

Hello @Castleland

Please try to use “Microsoft .NET Framework Repair Tool” to repair any possible issues for the setup of .NET Framework, and then try to download and install the .NET Framework again, as some shared files or registry keys may have been deleted during the cleanup of .NET Framework.

Best Regards
Karlie

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Answer 2

Check and see if the following keys exists:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v4.0.30319\SKUs.NETFramework,Version=v4.7.2
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319\SKUs.NETFramework,Version=v4.7.2

If yes, then v4.7.2 is likely to be installed.

Now to verify the file is okay, check your %windir%\Microsoft.NET\Framework64\v4.0.30319 folder and right-click the mscorlib.dll there. If the version is > 4.7. then it's okay. (for .NET v4+, it will replace DLLs with lower version number with greater versions. Since you don't have v4.8 installed, core libraries like mscorlib.dll should show 4.7.3324.0 when viewed)

Answer 3

Hi again Cheong00

Unfortunately those keys are missing. v4.7.1 is the latest version showing. Same for the mscorlib.dll

So even though it's saying "installed successfully" and there are no error logs - it's not actually installing at all.

:(