Uninstall pre-loaded software's

Please explain, how to uninstall pre-loaded software’s installed by default…

Open App Center choose the application you want to uninstall and click Uninstall

Sir, Specifically for system app. They don’t show the uninstall options.

Sorry, there isn’t currently any way to remove system apps like Videos, beyond removing the icon from the desktop.

However we do plan to migrate more system apps to regular apps in future, which would then allow you to remove them. We recently did this for LibreOffice.