Fast Startup is a feature in Windows that allows for quicker boot times by saving the system's current state to a hibernation file upon shutdown. When the user starts the computer again, Windows uses this hibernation file to restore the system to its previous state, eliminating the need for a full system boot. This feature is especially useful for users who frequently restart their computers or have laptops with limited battery life.

Fast Startup can significantly reduce the time it takes for Windows to start up, providing a more efficient and streamlined experience for users. By leveraging the hibernation file, Windows avoids the lengthy process of loading all the necessary drivers and services during a cold boot. Instead, it only needs to load the hibernation file, which contains the kernel session and device drivers, resulting in faster boot times.

To enable Fast Startup in Windows, follow these steps:

1. Open the Control Panel and navigate to the Power Options.
2. Click on "Choose what the power buttons do" from the left sidebar.
3. Click on "Change settings that are currently unavailable."
4. Scroll down to the "Shutdown settings" section and check the box next to "Turn on fast startup (recommended)."
5. Click on "Save changes" to apply the settings.

Once Fast Startup is enabled, Windows will utilize this feature every time the computer is shut down or restarted. However, it's important to note that Fast Startup is not compatible with all system configurations. If you're experiencing issues with your computer after enabling Fast Startup, it's recommended to disable this feature and troubleshoot the underlying problem.

Examples:

Example 1: Using Command Prompt (CMD) To enable Fast Startup using Command Prompt, follow these steps:

1. Open Command Prompt as an administrator.
2. Type the following command and press Enter: powercfg /hibernate on
3. Type the following command and press Enter: shutdown /s /hybrid /t 0

Example 2: Using PowerShell To enable Fast Startup using PowerShell, follow these steps:

1. Open PowerShell as an administrator.
2. Type the following command and press Enter: powercfg /hibernate on
3. Type the following command and press Enter: shutdown /s /hybrid /t 0