powershell update, windows 7

Currently I have:
PS C:\users\mike\gitcode\gitfundamentals> $PSVersionTable.PSVersion
Major  Minor  Build  Revision
-----  -----  -----  --------
2      0      -1     -1  

But I want to update to the latest version of it. Using the instructions below (https://technet.microsoft.com/en-us/library/hh847837.aspx)

These instructions explain how to install Windows PowerShell 3.0 on computers running Windows 7 with Service Pack 1.
Getting ready to install
1. Before installing Windows Management Framework 3.0, uninstall any previous versions of Windows Management Framework 3.0.

To install Windows PowerShell 3.0
2. Install the full installation of Microsoft .NET Framework 4.0 (dotNetFx40_Full_setup.exe) from the Microsoft Download Center at http://go.microsoft.com/fwlink/?LinkID=212547.

Q1: How can I find what version of Windows Management Framework x.x I have currently. I maybe already have this.

Q2: How can I find what version of Microsoft .NET Framework x.x I have currently. I maybe already have this.
LVL 34
Mike EghtebasDatabase and Application DeveloperAsked:
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footechCommented:
If you had WMF 3.0 (or newer), your PowerShell version would be higher.  BTW, the latest WMF/PS for Win7 is 4.0.
http://www.microsoft.com/en-us/download/details.aspx?id=40855

For .Net Framework - Look in your programs list under Control Panel (Programs and Features).  I would just go ahead and install 4.5.2 (it's an update for 4.0).
http://www.microsoft.com/en-us/download/details.aspx?id=42642
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Mike EghtebasDatabase and Application DeveloperAuthor Commented:
Hi footech,

Thank you for the info. Also, could you please take a look at:
http://www.experts-exchange.com/Programming/Project_Management/Version_Control_CVS/Q_28624295.html

Mike
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Mike EghtebasDatabase and Application DeveloperAuthor Commented:
Thank you.
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