Uninstall program in windows 7

Press button Windows or click button Windows (Start)

Click Control Panel

Click Uninstall a program

Choose program that will be uninstalled. For example Mozilla Firefox, double click Mozilla Firefox

Click Next

If you will remove your input data previously in Firefox check Remove my Firefox personal data and customizations. And then click Uninstall

Wait until the display like that

If you will restart your computer or laptop, choose Reboot now. But if not, you can choose I want to manually reboot later.
Click Finish.
You have successfully uninstalled the program.

If you want to read about how to uninstall Program in Windows 10 you can click HERE