Hyper-V Server or Server Core Command Prompt Window
Problem:
You’ve closed your command prompt window on Hyper-V Server 2008 or Windows Server 2008 Core Installation and need to re-open it:

Solution:
Start Windows Task Manager by pressing Ctrl & Shift & Esc. Click File>New Task:

Type cmd.exe and click ok:

You now have a new command prompt window:

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uh… thanks for text.