Sometimes Sleep mode is wrong with Hibernation, this has also happened to language programmers when switching from Win7 to Win8-10 1 - The computer is not completely turned off in sleep mode. The data is stored in RAM and the computer must still be powered on. However, power consumption is significantly lower than in normal mode. From sleep mode, the computer wakes up almost immediately to where you left off. The data does not have to be read from the hard disk and the computer is immediately ready to work. The disadvantage of sleep mode is that a sudden power outage can result in the loss of data that has not yet been stored on the hard disk. If the laptop battery is already low, Windows will automatically save all your work and the computer will automatically shut down. Sleep mode is useful when you are not at the computer for a short time. 2 -When the computer enters hibernation mode, the contents of RAM are saved to the hard disk and the computer shuts down. There must be enough free space on the disk. At least as much RAM as you have. When turned on, the contents of RAM are loaded and you can continue working from where you left off. Compared to sleep mode, startup is slightly slower because the data is read from the hard disk. Hibernation is better when you know that you will not be using the computer for an extended period of time. Now it's about which version of sleep you use, 1 - when the Power light flashes lightly - the computer only sleeps, after waking up it is immediately able to continue working where it fell asleep ... 2 - when the Power light is off the computer has been put into hibernation and is off. After returning to life from the disk, it loads into the operational memory everything he dealt with before hibernation, and it takes a while .... A little advice on gold from the grandfather of the Grandfather Neznalka: Before you put your computer to sleep, during a goodnight fairy tale, turn off all the programs you don't need, then give him a good night ... so that he's not like going to bed right after a rich dinner. After all, the computer is like a human being, it does what you teach it.