Play win8 system How to install win8

There are many ways to install win8. Here is a direct installation method of hard disk. It can also be regarded as the easiest installation method. That is to install Win8 with source/setup.exe hard disk. The specific method is as follows.
When you Don't be too excited when you see the setup.exe in the root directory after extracting iso. It is hidden in the source folder than its useful setup.exe!
The difference is 啥? Why use source/setup.exe? Know more profound truths. But everyone's practical experience tells us:
Use the source/setup.exe installation process to choose which disk to install! The setup.exe in the root directory can not be selected, a friend summarized that the setup of the root directory is quite To upgrade the current system!
and the practical experience once again shows that when you use the root directory setup.exe, you may encounter various inexplicable troubles. For example, if you are a 2GB memory, it may recognize that you only have 1GB? ~ Prompt you can not install ~ ~ buy memory stick to … … Oh no? Of course this is a few cases.