How to solve sharing under Win7 system

In the campus LAN, what good things are between the students is generally a shared method for everyone to download and read. The commonly used tool is Feiqiu, but there are more people downloading at the same time, which takes up bandwidth, which will affect the performance of your own computer. So generally use the folder sharing method, so you do not need U disk copy to take up your time, others want to go down. Recently, a friend reported that sharing failed under Win7, so I wrote the following tutorial.
Operation steps
First click on the network icon in the notification area of ​​the taskbar, as shown below, click to open the network and sharing center.

Then left click on the left to change the advanced sharing settings.

In the advanced sharing settings interface, first check Enable network discovery, then drop down the scroll bar on the right.

In public folder sharing, check Enable sharing to save changes.

In order to verify that we have solved this problem, I right-clicked on a file and shared the function in the right-click menu to prove success.