Sleep mode realizes rapid recovery by keeping memory powered, suitable for short-term departure; Sleep mode saves data to the hard disk and completely powered off, suitable for long-term deactivation and prevents data loss; mixed sleep combines the advantages of both, taking into account speed and security.

If you need to leave your computer temporarily, but hope to continue your previous work later, Windows 10 offers two power states: Hibernation and Sleep. Both modes save your work progress, but there are significant differences in how it works, power consumption, and recovery speed. The following is a detailed comparison and explanation.

This article runs: Dell XPS 13, Windows 10 Professional Edition

1. Working principles and characteristics of sleep mode

Sleep mode is a low-power standby state designed to achieve rapid recovery. The system will keep all currently open programs and document data in memory (RAM), and turn off non-essential hardware such as monitors and hard disks to save power, but the memory will continue to power to maintain the data.

1. When you select "Sleep", the computer will quickly enter a low-power state, the screen will turn black, and most indicator lights will flash or go out.

2. When wake up, just press any key on the keyboard, move the mouse or press the power button, and the system can directly read data from memory, usually in a few seconds to restore to the state before the operation.

3. Because the memory needs to be continuously powered, if the device is a laptop and the battery is exhausted, or the desktop is powered off, the data in the memory will be lost , resulting in unsaved work that cannot be restored.

4. This mode is best suited for short-term departure scenarios, such as going to a meeting, having lunch or handling other short-term tasks.

2. Working principle and characteristics of sleep mode

Hibernation mode is a completely power-saving state that saves the current state of the system completely to a special file (hiberfil.sys) on the hard disk, and then completely shuts down all hardware components of the computer, including memory.

1. When you choose "Hibernate", the system will first write all data in memory to the hibernate file of the hard disk. This process may take more than ten to tens of seconds. After completion, the computer will stop all operations like a complete shutdown.

2. When booting again, Windows will not perform regular booting, but will read the hibernation file from the hard disk and reload the data back to memory, thus returning to the precise state before hibernation.

3. Since data is stored on the hard disk rather than memory, even if there is a long period of power outage or the battery is completely exhausted, your working status can be fully retained without losing any information.

4. This mode is suitable for situations where computers are not used for a long time, such as overnight stays, business trips or weekend breaks, which can maximize power saving and ensure data security.

3. Functional analysis of mixed sleep mode

Hybrid sleep is a model that combines the advantages of sleep and dormancy, designed primarily for desktops to provide rapid recovery while increasing data security. It will automatically back up memory data to the hibernation file of the hard disk while the system is sleeping.

1. Under normal circumstances, when you wake up the computer, the system will quickly recover data from memory like normal sleep, enjoying extremely fast wake-up speed.

2. If an unexpected power outage or power failure occurs during sleep, since the data has been backed up to the hard disk, the system will automatically recover from the hibernation file after restarting, avoiding work loss.

3. After enabling hybrid sleep, it can perform sleep and hibernation operations simultaneously in the background, and users do not need manual intervention, which not only ensures convenience but also improves reliability.

4. You can find and turn on or off the hybrid sleep function in the Advanced settings of the Power Options of Control Panel, and configure it according to your device type and usage habits.

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