Source: http://jingyan.baidu.com/article/5bbb5a1b5daf3413eaa17910.html
The "Sleep" button was not found when I recently used Windows 7. I searched for some help provided by windows and found some nonsense. Finally, I picked up Baidu and found the answer. Share this record with others.
Tools/Raw Materials
STEP/Method
Enter powercfg-H on
Sleep back
Still not back? Check if "hybrid sleep" is enabled.
If you have not run the preceding command, open
Control Panel → hardware and sound → power options, then click Change Plan settings"
Turn on "change advanced power settings"
Check if "hybrid sleep" is enabled. If it is enabled, close it.
Set to "off" and click "OK.
Let's take a look. Now the "Sleep" button should come out.
Some people say that I do not like sleep, and I want to shut down directly. Then we will disappear from sleep ......
Enter powercmd.exe/hibernate off at run.
Knowledge
Sleep: cut off the power supply of other devices except the memory, and the data is still in the memory. A small number of batteries are required to maintain the memory power supply. Once the power is down, data in the memory will be lost. The next boot will restart.
Hibernate: Write the memory data to the hard disk, and then cut off the power supply of all devices. Power supply is no longer needed.
Hybird sleep: writes memory data to the hard disk, and then powers off all devices except the memory. This avoids data loss in the memory when a power failure occurs. The next time you start the system, it is restored from sleep.