Probald a KB4343900 frissitest letolteni direktben innen:
http://www.catalog.update.microsoft.com/Search.aspx?q=KB4343900
es offline telepiteni.
Malware-ek utan is erdemes lenne kutarni, esetleg ideiglenesen uninstallalni a virusirtot.
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Windows Management Framework 3.0 requires Microsoft .NET Framework 4.0. You can install Microsoft .NET Framework 4.0 at http://go.microsoft.com/fwlink/?LinkID=212547

In addition, the following requirements apply:

To install Windows PowerShell Integrated Scripting Environment (ISE) for Windows PowerShell 3.0 on computers running Windows Server 2008 R2 with Service Pack 1, before installing Windows Management Framework 3.0, use Server Manager to add the optional Windows PowerShell ISE feature.
Before installing Windows Management Framework 3.0 on Windows Server 2008, you must download and install the version of Windows Management Framework which includes Windows PowerShell 2.0, WinRM 2.0, and BITS 4.0 as a prerequisite. This version of Windows Management Framework is available at http://support.microsoft.com/kb/968929.
Windows 7 Service Pack 1 (SP1) must be installed as a prerequisite on computers running Windows 7. To install SP1, go to http://windows.microsoft.com/installwindows7sp1