In Windows 7, it was easy to add or
remove a startup program. There was a Startup folder on the Start menu
that you added program shortcuts to or deleted program shortcuts from.
It was simple, but it was incomplete because a lot of things that
started up never showed up in the Startup folder. So knowledgeable users
paid a visit to the System Configuration (MSCONFIG) utility. That utility still exists in Windows 8, and you can use it to disable services you no longer need or want.
To disable startup programs
1. Press 
+R to open the Run dialog box, and type msconfig. Tap or click OK.
The System Configuration utility opens to the General tab . Normal startup loads everything; Diagnostic startup places you into Safe Mode so that you can fix broken drivers and other problems; and Selective startup lets you turn programs and features on and off.
The General tab of the System Configuration dialog box lets you set the type of startup configuration your system will use.
2. Leave the Selective Startup radio button enabled, and tap or click the Services tab .
The Services tab lets you see which services are in use.
Caution
When you disable a service, be careful that
you aren’t disabling something that is essential for Windows operations.
You can read a description of the service, what it does, and its
dependencies in the Services control panel.
3.
The Services tab lets you see what services are currently running on
your system and allows you to disable any of them by deselecting their
check boxes.
4. Click the Startup tab, and then click the Open Task Manager link . Task Manager opens.
The Startup tab leads you to the Task Manager.
5. To disable a startup application, tap or click its name and then tap or click the Disable button .
The Startup tab of the Task Manager shows the effect that startup programs have on Windows 8.
Tip
Although the Startup folder no longer appears on the Start menu, it hasn’t disappeared. To view it, press +R to open the Run dialog box, and type in %appdata%. The Startup folder is called Roaming and is stored in your user profile. In Windows Explorer (+E), you can enter the path %appdata% or C:\Users\<username>\AppData\Roaming to view this folder.
