There are several methods to disable unwanted programs and services. The most common and safest way is to do this through the Windows Control Panel, which can be found by going to the Start menu and navigating to the Programs > Administrative Tools > System Configuration. From there, you can configure the Startup and Services tabs to select which programs and services are running at the system startup, and disable those that you don’t want or need. It’s also possible to disable unnecessary programs and services using the Task Manager, which can be accessed by pressing Ctrl+Alt+Del. Finally, you can use specialized software such as CCleaner or System Mechanic, which will allow you to manage and disable any unnecessary programs or services on your system in a much easier and safer way.