Is there any free software that can change a photos color like it's original color. The software I use can't match the colors perfectly. So I want a free software than can perfectly change a photo's colour.

There's a free trial of Photoshop Elements 6 in the Adobe website. I don't know if it contains the feature you are looking for, I don't understand what you said completely. But it might have it.

You can use Photoshop to edit your colors. I found it a bit fun doing it. Whenever I’m doing something with this software it feels like playing.

You should try it for yourself!

tehre are free softwares out there but mostly they're on trial basis either that or they're free and sometimes have spy/malware (not all but majority). When I bought my digital camera, it came with such a software to edit the photo colors and such... it was an add-on for Photoshop though =)