Final answer:
The fastest option to prevent applications from running on startup in Windows is MSCONFIG.
Step-by-step explanation:
The correct answer is A. MSCONFIG.
MSCONFIG is a command-line tool in Windows that allows users to manage startup programs. It provides a simple interface to enable or disable applications from running on startup.
To use MSCONFIG, follow these steps:
- Open the Run dialog box by pressing the Windows key + R.
- Type 'msconfig' and press Enter.
- In the System Configuration window, go to the 'Startup' tab.
- Uncheck the boxes next to the applications you want to prevent from running on startup.
- Click 'OK' and restart your computer for the changes to take effect.
By using MSCONFIG, you can quickly and easily control which applications run when you log into Windows.