Exchange Server 2010 and 2007 Issues with Windows Updates KB2506146 and KB2506143

Watch for Windows Updates KB2506146 oraz KB2506143 and error

Exchange Server 2010 or Exchange 2007


Microsoft recently released updates KB2506146 and KB2506143 for operating systems Microsoft Windows 2008, 2008 R2 and Windows 7.

If you have Microsoft Exchange 2010 or Microsoft Exchange 2007 don’t install these updates.

Exchange Server 2010 and Exchange Server 2007 have some issues with these updates KB2506146 and KB2506143.

These updates will install Windows Management Framework 3.0 with PowerShell 3.o which is not supported by Exchange Server 2010 nor 2007.

You can read about updates here:

  • KB2506143 is the WMF 3.0 update for Windows Server 2008 R2 SP1 and Windows 7 SP1;
  • KB2506146 is the WMF 3.0 update for Windows Server 2008 SP2.


After you install these updates, your Exchange Server 2010 or 2007 system can be unavailable or unusable. It also include workstations with Windows 7 and Exchange Management Tools.

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