When You Turn The Computer On

When you press the power button, Windows 11 loads into memory.

It then loads drivers, services, security software, networking tools, and the programs that have been configured to start automatically.

By the time you see the desktop, dozens or even hundreds of separate jobs may already be running.

Power On
   |
   +-- Windows
   +-- Drivers
   +-- Services
   +-- Security
   +-- Network
   +-- Startup Programs
   +-- Desktop

Windows Shares Time Between Programs

Windows does not run one program forever.

It gives a small amount of time to one program, pauses it, then gives time to another program, and then another.

This happens thousands of times every second and creates the illusion that everything is running at the same time.

Program A runs
Program A pauses

Program B runs
Program B pauses

Program C runs
Program C pauses

Why RAM Matters

Windows needs memory (RAM) to keep programs ready to run.

If there is not enough RAM available, Windows begins moving information out of RAM and onto the hard drive or SSD.

Storage devices are much slower than RAM. The result is a computer that feels sluggish, pauses unexpectedly, or takes a long time to switch between programs.

Look At The Taskbar And System Tray

At the bottom of the screen is the taskbar.

The taskbar shows open programs, pinned programs, search tools, and shortcuts.

Near the clock is the System Tray. This area often contains programs that continue running in the background even when you cannot see them.

Open Task Manager

Right-click the Start button and open Task Manager.

• Processes
• Performance
• Memory
• Startup Apps
• Services

This lets you see what is actually running and how much memory your computer is using.

Computer Management And Device Manager

Right-click the Start button and explore:

• Computer Management
• Device Manager
• Disk Management
• Network Connections

These tools show how Windows is organized behind the desktop.