In the windows 7 or vista it can be perform by few steps in menus but it was so easy in XP. Now there are three steps to open the system properties:The faster way is to write “sysdm.cpl” in search box of start menu.In the start menu right click on “My computer”.Browse Control Panel, and select System and Maintenance, and then System.If you will perform it with last two options then you should also click on Advanced System Settings.
After doing last step you will see the screen with system properties.Here you can change the name of your computer by clicking on the “Change” button, and then the new screen will appear like thisHere you will write the name of your computer as well as the name of workgroup of your choice. Now there is just need to reboot the system.
Change Computer Name in Windows 7