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I am attempting to install SQL Server 2008 R2 version 10.50.4000 on a virtual machine running Microsoft Windows Server 2008 R2.

When I try to install SQL Server, I get an error that, when I look it up, says I need to install and configure .NET Framework 3.5 first.

When I try to install via add features, it fails without telling my why, and I have to restart the server.

When I try to install manually, it says I have to use the installer.

When I try to install via PowerShell (Import-Module ServerManager and Add-WindowsFeature as-net-framework), I get the following error:

Add-WindowsFeature : Installation of [.NET Framework 3.5.1 Features] .NET Framework 3.5.1 failed. The server needs to b e restarted to undo the changes. At line:1 char:19 + Add-WindowsFeature <<<< as-net-framework + CategoryInfo : OperationStopped: (:) [Add-WindowsFeature], Exception + FullyQualifiedErrorId : FeatureMessageDetail,Microsoft.Windows.ServerManager.Commands.AddWindowsFeatureCommand

There has been more failed attempts, but I can't remember all that I have done that has failed, I have had people breathing down my neck all day, so I skipped the recording what I have tried step in the name of speed... Any help would be appreciated.

  • Have you considered trying on a different / new VM? – Aaron Bertrand Jun 28 '16 at 20:57
  • You might give a try to System File Checker and System Update Readiness Tool. If neither helps, provision a new VM for fresh start. And keep the logbook even if in a hurry. When boss asks what's taking so long, you can use the logbook to show that you haven't been just goofing off all day long. – vonPryz Jun 29 '16 at 4:59
  • I tried your suggestions, unfortunately they didn't work. For now I guess I will have to use the QA system like my boss wants. I hope I got the point that using the QA system for R&D is a bad idea. – dabuda Jun 29 '16 at 12:33
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I got it working. This is how I got it working... I used a CD.

I don't know why it worked. I didn't even have to use a key, and it was the same version I downloaded multiple times from the Microsoft website...

  • If someone can propose a better answer, I will try to test and change the answer to that. – dabuda Jul 1 '16 at 20:06

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