How to join the Win10 system's Insider program?

Although Windows launched the win10 clear free plan, but to join the win10 system, it seems not so simple. This is not the case, the user who first joined the win10 system has experienced it. To enter win10, we need to join its inside plan first. So how do we operate on this inside plan? Below, Xiaobian will introduce the detailed steps!
1. First of all, we need to pay attention to the fact that to achieve the operation of joining the inside plan, you must have a Microsoft's account is OK, no friends, just go to apply first! After the preparation, we log in to the Windows Insider website, click this link, log in to the Microsoft account you applied for.

2. Next, in the window interface that we appear, let's click directly to join, and then we can see the window shown in the following figure, all of which are English interfaces, which may not be good for English. For friends, it seems to be quite laborious. This is a privacy agreement that we agree to accept. Anyway, this type of agreement is the same. If you don't accept it, you can't continue to operate. Let's just click "Accept" in the window and accept it.

3. After that, let's wait for the web page to jump. After the jump, we can receive the prompt of success. After that, we can upgrade the preview version of win10!