我可以从Visual Studio 2017企业版转换为社区版吗？

我安装了Visual Studio 2017企业版，但我没有许可证，这意味着我只能试用一个月。我想知道是否有办法将其转换为社区版？ 

I installed Visual Studio 2017 Enterprise Edition but I don't have a license which means I can only try it for one month. I want to know if there is a way to convert it to Community Edition? 

背景：

我无法访问互联网，所以我无法下载社区版。我的公司有Visual Studio 2017企业版离线安装程序，但我不允许申请许可证。所以我唯一能做的就是安装Visual Studio
2017企业版并试用一个月。这就是我问这个问题的原因，试图将其转换为社区版。 

I don't have access to the Internet so I can't download the Community Edition. My company has Visual Studio 2017 Enterprise Edition offline installer but I'm not allowed to request a license. So the only thing I can do is install the Visual Studio 2017 Enterprise Edition and try it for one month. That's why I'm asking this question, trying to convert it to Community Edition. 

谢谢。