We know that the Win7 computer will cut off the power of other accessories except the memory in the “sleep” state, and the working status data will be saved in the memory, so that the working state before sleep can be quickly restored when the computer is reawakened. Suitable for leaving the computer for a short time. The "Hibernate" state will save the open documents and programs to a file on the hard disk (can be understood as a mirror of the memory state), read data from this file and load physical memory when waking up, faster than restarting you. a lot of. Suitable for leaving the computer for a long time. Although these two states are energy efficient, there is no way to guarantee normal network downloads. To ensure long-term energy-saving downloads, we can use “ leave mode & rdquo;, this state is similar to sleep, but can continue to read and write files at the same time, while maintaining network connection, other graphics cards, sound cards and other unnecessary devices are off State, truly energy efficient. Using Win7 & ldquo; leave mode & rdquo; to achieve long-term energy-saving downloads, hardware devices need to support advanced power management, but also need to do some related system settings. Setting never to turn off the hard disk First of all, we need to set the option to turn off the hard disk and go to sleep in Win7 power management to "never"; otherwise, there is no way to download the hard disk. We then go to the Win7 system "Control Panel & mdash; Hardware and Sound & mdash; Power Options & mdash; Edit Plan Settings", click “Change Advanced Power Settings & rdquo;. Icon: Click “Change advanced power settings” In the “Advanced Settings” interface, we will “close the hard disk after this time” under the “hard disk” option, set to “never”. . Illustration: Setting never shuts down the hard disk Next we need to make some minor changes to the Win7 registry, the operation is very simple. Simple Registry Settings Enter “regedit” in the search box at the bottom left corner of the Win7 desktop and press Enter to open the Registry Editor. In the Win7 registry, find the item "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\SessionManager\\Power”, then click the right mouse button in the blank space in the right window to create a new "DWORD32 bit " value”, Name it "AwayModeEnabled", double click to open it, set its key value to the number "1", click OK to close, close the registry editor. Graphic: Win7 registry settings Icon: New button AwayModeEnabled, the key value is 1 After the modification is completed, click OK to close the registry, return to Win7 desktop, according to Win7 prompts need to restart the computer to take effect. After the setup is complete, we can try to open the download software, find a file with a large file size to download, and let the Win7 system enter the hibernation state. Now the Win7 system can ensure that the network connection is not disconnected and the data is continuously downloaded during the sleep state. Write to the hard disk to maximize environmental protection and energy saving. If you do not want to use this exit state on-hook download mode, directly follow the above steps to return to the registry editor, find the newly created "AwayModeEnabled", delete it.