Microsoft has released an update for Windows 8 and Windows Server 2012 to address the "Failover Cluster Management snap-in crashes after you install update 2750149 on a Windows Server 2012-based failover cluster" problem

Assume that you install update 2750149 on a Windows Server 2012-based failover cluster, and then you open the Failover Cluster Management snap-in. In this situation, the Failover Cluster Management snap-in crashes.

For more information about update 2750149, click the following article number to view the article in the Microsoft Knowledge Base:
2750149 An update is available for the .NET Framework 4.5 in Windows 8, Windows RT and Windows Server 2012

Update for Windows 8 (KB2803748)
Update for Windows 8 for x64-based Systems (KB2803748)
Update for Windows Server 2012 (KB2803748)