To find out which programs run when you start up your PC:
Click on Start, and type msconfig into the search box. Then click on msconfig.exe.
The window which opens lists all the programs which run at start up; you can choose to disable individual programs, which may make startup quicker.
On Windows 8, open the Task Manager by holding down the Ctrl key, and the Alt key, and press the delete key. Choose Task Manager. Choose the Start-up tab.