control panel>network internet con>network con>right click on conection >networking>internet protocol>propreties to change the ip of the computer if you want to change the ip that other people on internet see (to hide the ip ) use hide ip or try proxy server
Usually IP comes from your ISP, so you can't change it unless you use a proxy (which changes the IP shown outside). You can try to request a new IP address from your ISP server like this in command prompt: