How to distinguish between Win8, Win8.1 and Win8.1 Update

Many friends still don't know about Win8 system. I don't know how to distinguish between Win8, Win8.1 and Win8.1 Update. Today, Xiaobian is going to popularize this knowledge for everyone. Microsoft officially announced three official versions of Win8, namely Windows 8, Windows 8.1 and Windows 8.1 Update (for ease of reading, referred to as Win8, Win8.1 and Win8.1 Update). The relationship between the three is that Win8 was released in 2012, Win8.1 is a major upgrade and upgrade version of Win8 released in 2013, and Win8.1 Update is a small improvement upgrade of Win8.1 released in 2014. Version.
There aren't too many differences between the three systems at first glance, so how do you distinguish these three systems? Let's take a look at the different ways of distinguishing the small series.
In fact, it is quite simple to distinguish between Win8, Win8.1 and Win8.1 Update. If there is no Windows start button on the PC traditional desktop, it is the oldest Win8 version; otherwise, if there is a start button, then It is Win8.1 or Win8.1 Update; if there is a “Shutdown” and “Search” button in the upper right corner of the “Start Menu”, it is Win8.1 Update.
The start button is definitely not Win8, only Win8.1 or Win8.1 Update in the start menu, you must move the mouse to the lower left corner to display the start button.
In addition, there is a way to quickly Identify whether the current system is Win8. The method is to move the mouse to the lower left corner and right click, and see if there is any shutdown or logout function on the right-click menu. If not, then it is Win8.
There is no shutdown or logout function in the right-click menu, it is definitely Win8. If you start the menu about the machine and the search button, it is definitely Win8.1 Update