Here is a wonderful trick that you can use to change your IP Address in less than a minute.
1. Open up a Notepad file and type the following
cd/
cls
color 0a
ipconfig /flushdns
ipconfig /release
ipconfig /renew
exit
2. Save it as a batch file with .bat extension.
3. Execute this file to change the IP address.
[ NOTE ] – This will work only if you are using a ISP that assigns you a Dynamic IP.