How should the Windows 7 operating system "sleep"?

Using computers in peacetime, we often choose to shut down when we leave, and generally think that this is both power-saving and safe. However, this is just a habitual practice for everyone. Many people have not thought about whether this is reasonable. In fact, since Windows XP (hereafter referred to as WinXP) system, Microsoft has provided "standby" and "hibernate" functions, and to Windows 7 (hereafter referred to as Win7), this function has been strengthened, providing more rich modes. Available for selection. Let's take a look at what kind of "sleeping" method we should choose for Windows7 in which different situations.

First, leave for a short time to use "sleep" to let the computer take a nap for a while

Usually use a computer, there are often such situations: occasionally need to leave for a period of time, long or short, not very fixed, such as This is the case at noon or at dinner. At this time, if you turn off the computer, it seems to be a bit of a big problem, because many programs and web pages have to be reopened when you come back, but if you don't shut down, the computer is wasting electricity, if there is anything to delay, time from one It’s not necessarily the hour to become two hours, it’s not a waste! It’s a bit of a dilemma. What should I do? In fact, this time you just need to enable the system's sleep function.

When you need to wake up after going to sleep, just press the power button or shake the USB mouse to quickly restore the working state before leaving, and continue to work. The speed can be much faster than restarting after shutdown! And all work before sleep can continue without restarting. At the same time, after entering the sleep state, the computer will only have the memory power-on to save the data of the working state, while the other hardware is all powered off, so the power consumption is very low.

What is "sleep"?

When the computer is in sleep state, it will cut off the power of other accessories except memory, and the working status data will be stored in the memory, so that when the computer is reawakened, it can quickly resume the working state before sleep. If you need to leave the computer for a short time during work, you can use the sleep function to save power on the one hand and resume work quickly on the other.

But you need to be reminded that because the sleep state does not save the desktop state to the hard disk, if the power is turned off during sleep, the unsaved information will be lost, so before the system sleeps, You'd better save all the documents you need to save, "Ctrl+S", just in case.

Tip: There are two ways to enable the sleep function. One is to click sleep directly in the shutdown button of the start menu, and the other is to set the time in the computer power management, as long as the computer has no one to operate. After reaching the set time, it will automatically go to sleep.

In addition, the methods for enabling hibernation, mixed sleep, and leave mode are similar to the method for enabling sleep.

Second, don't use "sleep" for a long time, let the computer sleep well

Besides leaving the computer for a short time, sometimes we may leave for a longer period of time, such as going out to work, even Maybe not at the computer one day, then at this time, shut down? Shut down, the program, document, webpage, data, etc. opened in the computer will be reopened the next time you turn it on! Do not shut down, if you don’t come back one day, the power is off, all the data is over, even if you sleep No, what should I do? It's very simple! Enable another useful function - "hibernate"!

Compared with the sleep function is to save the data in the memory, the hibernation function is to save the data to the hard disk, after going to sleep, all the accessories No power, so the power consumption is almost zero! And even in the sleep state, even if the power is turned off, it will not affect the saved data. When the computer wakes up, all the work can still be restored normally. At the same time, because the data is saved on the hard disk, the speed of wake-up is much faster than restarting the computer.

What is "sleep"?

"Hibernate" is a power-saving state that is primarily designed for portable computers. In this state, the open documents and programs are saved to a file on the hard disk (which can be understood as a mirror image of the memory state). When the next boot, the data is read from this file and loaded into physical memory. This file is the same size as physical memory. Since the file written by memory during hibernation is a disk file, the speed of reading is much higher than that of accessing the disk during normal startup, so it is much faster than normal startup.

In addition, it must be said that after the hibernation function is enabled, a hibernation file with the same size as your memory will be generated on the system disk to store the data in the memory. The user should pay attention to whether his system disk is There is enough space. For the stable operation of the system, the available space should account for about 10% of the system partition, that is, the 50GB system partition should have at least 5GB of free space.

Tip: If you do not use the computer for a long time, it is best to choose to shut down. In addition, some networked programs, such as web applications that need to log in, instant messaging software (most instant messaging software can automatically reconnect after recovery, but can not save the original dialog window) and many network management programs may appear after recovery It is not working properly, so it is best to quit these programs before the system sleeps.

Third, the departure time is not determined to use "mixed sleep" Let the computer choose

Well, above we talked about the short time to leave and leave for a long time, but sometimes Life is always full of variables - I don't know how long to leave, what should I do? It may be an hour, or maybe a day, sleep is not safe, sleep is not as convenient as sleep!

Take it easy! The best way is to let the computer choose it flexibly - if it is not powered, It will be restored from memory; if it is powered off, it will be restored from the hard disk. And this is the "hybrid sleep" function!

After enabling mixed sleep, the computer will automatically go to sleep, but unlike the sleep state, the data stored in the memory will also be saved in the hard disk. Therefore, even if the power is turned off, it will not cause data loss. When you wake up the computer, you can recover at a faster speed. This is the advantage of mixed sleep.

What is "hybrid sleep"

Hybrid sleep is unique to Win7 and WinXP does not. It combines all the advantages of sleep and hibernation. After entering the hybrid sleep, the system will first save the data in the memory to the hard disk, and cut off the power supply of other devices except the memory. In the recovery, if there is no power failure, the system will recover directly from the memory, it only takes a few seconds; if the power is off, because the memory is still stored in the hard disk, you can also recover from the hard disk without worrying about the data. Lost.

Tip: Hybrid sleep mode requires the motherboard's power management to support S3 mode, but the general motherboard supports this mode. If your computer supports the Hybrid Sleep feature, then when you start Sleep after turning on the Hybrid Sleep feature, the system automatically goes into Hybrid Sleep.

Fourth, hang up download with "away mode" Let the computer run low-power

In addition to the above we will say that several things will make the computer "hang-up" state, there is another in daily life A very important application - hang up downloads. In the past, we usually started the download process, then turned off the monitor and speakers to let the computer run automatically. However, in this state, some non-working hardware will continue to consume power, such as video cards and sound cards. In Win7, we can enable the new "away mode", which will not break the network, and will not affect the normal operation of the download program!

What is the power consumption situation when entering the exit mode? After entering this mode, the hard disk and memory will remain in working state, and the CPU enters a low power state (if the CPU does not support any energy saving technology, the leaving mode will cause the CPU to run at the lowest frequency × lowest FSB to reduce its power. Consumption), while unnecessary devices such as graphics cards and sound cards will be powered off. Although the power consumption is higher than the sleep mode, it is more power efficient than the normal boot download.

What is the "away mode"?

The exit mode is similar to sleep, except that in the leave mode, the file read and write operations can continue, while maintaining the network connection, while unnecessary devices such as graphics cards and sound cards are turned off to achieve energy saving. .

However, "Away Mode" requires hardware devices to support advanced power management and requires some setup.

First of all, you need to set the option to turn off the hard disk and go to sleep in the power management to "never". Otherwise, the hard disk is turned off, how can I download it? Secondly, you need to modify the registry, open the registry editor with administrator privileges and navigate to "HKEY_LOCAL_MacHINE\\SYSTEM\\CurrentControlSet\\Control\\session Manager\\Power", and create a new one named "AwayModeEnabled" in the right pane. DWord (32-bit) value, and assigned a value of "1" (hexadecimal), it will take effect after restart. Then click on the "Sleep" button in the Win7 Start menu to automatically enter the "Away Mode".

Tip: In the process of saving sleep, do not press the computer power switch, otherwise it may cause problems that can not enter the system.

In addition, if you are using a laptop, if the battery is about to run out during battery-powered sleep, the system will automatically save the memory data to the hard disk and then turn off the power and go to sleep. At the same time, if it reaches the sleep time in the power plan, it will also enter the sleep state. Therefore, in general, the laptop only needs to enable the sleep function. If you want to save power, you can set the time to go to sleep in the power management options, so that you can be sure of nothing.

I believe many users will doubt - really do not need to shut down? Yes, after using the computer for so many years, we are used to closing it after work every day, closing it before going to bed, and even closing it when we go out to eat at noon. In fact, we did not seriously consider our habits, and did not carefully study the sleep and hibernation functions that Microsoft provided us. In fact, the features provided by Microsoft naturally have its usefulness, otherwise it will not always exist, and further strengthened in Win7. So after reading this article, you might as well try to experience the convenience and benefits of sleep and hibernation, and don't get used to kidnapping.