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-press Win+Pause/Break.
-type in the start menu Search programs and files -Start menu or the magnifier icon search field computer name or just name. See the name of this computer should appear on the top of the menu or View your PC name opens. Select it.Computer name is located at the same place as highlighted in the picture below.
Windows 10 About tab settings and computer information:
Windows 10 control panel shows the computer's name:
Control panel > System and Security > System.
Windows 7: