The settings window pertaining to the network name of the computer is invoked using one of the applet "control Panel" Windows. Reference to this panel is placed in the main menu of the operating system - click on the "start" button and select in the right column of item "control Panel". In the opened window, click "System and security" and then "System". After that, the screen displays the desired applet. However, all these actions can be replaced by a pair of pressing "hot keys" Win + Pause.
In the applet there is a separate section with the heading "computer Name, domain name and workgroup settings" from the right edge where you placed the link "Change settings". Click it to open the window, change some properties of the system. Access to them requires the user to have administrator rights. If you are logged in not as administrator, then on screen a dialog box appears requiring to enter a password.
On the tab "computer Name" in system properties, click "Edit", and then, finally, a window will appear with a field "computer Name", whose value you need to change. Enter a new network name, following the standard rules for Internet names. They are allowed to use only letters of Latin alphabet as well as numbers and some symbols with the exception of special. Prohibited are, for example, < > ; : "* + \ | , ? =. Microsoft recommends using short and descriptive names are 15 characters or less. In addition, they should not consist only of digits and cannot contain spaces.
Then click OK and close the "control Panel". If the computer is on a domain, you are prompted to enter the password of the user who is allowed to change the names of the domain computers. And if the domain is not being used, please note that other computers on the local network will try to find the resources of this computer (e.g., network drive) at the same address. So you'll need to manually change the name in the address of the network resource or disconnect it and connect again.