When you're done gaming for several hours, or have ended a long day at work, the last thing you normally do is give your PC a well-deserved rest by hitting Start then Shut Down. However, you might be surprised to hear that hitting the Shut Down button doesn't fully shut down you PC. Here's why...
In Microsoft Windows 10, your Shut Down command doesn't work as it did in earlier versions of Windows. As a matter of fact, the Windows 10 version of Shut Down is essentially a rebranded version of the Hibernate feature you had in Windows XP. This is where the PC would temporarily store the random access memory (RAM) to the computer's internal storage drive, so when you power on or "wake up" your PC, the rebooting time is significantly reduced.
The Windows 10 Shut Down process is technically called Hybrid Sleep where, like Hibernate, it will store vital random access memory data to the internal drive. However, this data would not be lost if the computer is disconnected from its power supply.
There's a lot more to it, but we'll let the guys over at YouTube channel, Tech Quickie, tell you all about it in their video titled "Shut Down" Doesn't Actually Shut Down Your PC.