TCP window size in Win2008 R2 and Win2012 R2

How to change the TCP window size in Win2008r2 and Win2012r2? What's the default window size and how to confirm it ?
STARS1Asked:
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Bill BachPresident and Btrieve GuruCommented:
These versions of Windows Server use auto-tuning of the receive window size.  You can confirm this through this command:  netsh int tcp show global.  If this is set to "normal", then the receive window can grow depending on the connection.

What are you trying to accomplish by messing with these parameters?

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santhoshuCommented:
Yes, BillBach is right.  If we do not have the necessity to modify the default, leave it as it is.
If you want to know more about netsh (this is the utility with which you can modify network settings), this guide in this link http://www.speedguide.net/articles/windows-7-vista-2008-tweaks-2574 will help
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