QA #19 How upgrade Powershell version on Windows Server 2008 R2

Question

How upgrade Powershell version on Windows Server 2008 R2

On Windows Server 2008 R2 you have Powershell 2.0 on board. There are plenty of reasons to update them to new version 5.0. Fortunately Windows Server 2008 and Windows 7 supports newest release. How upgrade Powershell version on Windows Server 2008 R2?

Answer

To answer the question what are the benefits of upgrading Powershell to newest version please see related information:

  • What’s new in Powershell 5.0 – LINK
  • What’s new in ISE 5.0 – LINK

Of course it’s worth 🙂 How to upgrade?

Requirements

At the beginning check already installed version of Powershell by starting them and type: Get-Host command. You should see following window.How upgrade Powershell version on Windows Server 2008 R2

Version 2.0 is visible. You need to download and install 3 things for upgrading Powershell from 2.0 to 5.0. First of all download source files:

  • .NET Framework 4.5.2 – LINK
  • Windows Management Framework 4.0 – LINK
  • Windows Management Framework 5.0 – LINK

Make sure that system is updated and no new KB waiting for installation.

Installation

Installation should be performed in following steps:

  • Install .NET Framework 4.5.2 which is requirement by Powershell 5.0. Just start downloaded file and go further with installation wizard. No restart is needed.How upgrade Powershell version on Windows Server 2008 R2
  • Install Windows Management Framework 4.0 and restart server. After that you can check PS version once again with Get-Host and see the 4.0.How upgrade Powershell version on Windows Server 2008 R2
  • Install Windows Management Framework 5.0 and restart the machine.How upgrade Powershell version on Windows Server 2008 R2

That’s it! Now you have successfully installed new version of Powershell. Check it once gain typing Get-Host in PS command line.How upgrade Powershell version on Windows Server 2008 R2

Rollback

In any case of situation where rollback is needed few actions should be taken to uninstall WMF 5.0, WFM 4.0 and .NET Framework 4.5.2. To do this execute following steps:

  • Uninstall KB3134758 which is WMF 5.0 and KB2819745 which is WMF 4.0,
  • Remove .NET Framework 4.5.2.

After that system will be available with default Powershell 2.0. There is also possibility to install version 3.0 but it’s not needed in upgrade path.

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