You need to reduce the startup process time

All client computers on your company network run Windows 7. An employee installs several new
applications on a computer. After the applications are installed, the computer takes longer to start.
You need to reduce the startup process time. What should you do?

A.
Run the msconfig tool.

B.
Run the bcdedit command.

C.
Use the Services console to stop the applications.

D.
Use the Task Manager tool to stop the applications.