Reformatting by "illiterate" usually results in a machine worse off than when they started. You should just uninstall what you can and use the machine.
This issue worsens on machines that people buy second hand since they may have no inventory of what hardware is in the machine or may not realise that they don't have the Operating System CD needed to install the OS from.
My advice is to just clean it up.
I have this computer i bought for my daughter for school purposes. I do not know anything about it but want to take all the stuff that is on it and reformat it. Because im illiterate when it comes to this kind of stuff i was hoping maybe someone can guide me on how to go about this. Please if any of you can help please send me a message to email@example.com it would be a great help.