在资源管理器中从OneDrive打开文档会触发Office要求激活，为什么？

Some more information on the versions you have installed and the installation method would be useful, especially as regarding which installations are MSI (desktop installations) and which are click-to-run. As there are many reports about such incompatibilities, I will assume below that you are running into the same problem.

An explanation for the problem can be found in the thread OneDrive for Business asking to Activate Office, where Tim Liu from MSFT Support said :

The coexistence of an Office 2013 MSI (Office 2013 Professional Plus) and Office 2013 Click-to-Run (OneDrive for Business from portal) installation on the same computer is not supported. It may cause some unexpected issues.

If the issue happens again, we suggest that you only install Office 365 ProPlus which includes both Office applications and OneDrive for Business.

You can follow the steps below:

1. Remove Office 2013 Professional Plus with the Fix it tool in this page.
2. Sign in to the Office portal with your work/school account and click the setting gear on the right top. Choose Office 365 settings>Software>Office>Install.

Some other answer is (I'm not too sure about this one) :

Install the click to run first, then install the MSI. I have 75 users on 365 and many have Visio/Project installed also that are from MSI.

If you have the opposite problem, having installed the Click To Run version of Office and wish to switch to the MSI Edition, see the procedure in the article MSI vs Click To Run Office installations – How to switch.

If this does not work for you, the thread OneDrive for Business asking to Activate Office has these workarounds :

First two potential workarounds (which seem to work for us):

1. Launch the Office application (e.g. Word, Excel,...) from the desktop and browse to the One Drive for Business folder to open the document (from within the Office application File > Open)

OR

2. 从桌面启动Office应用程序，并使其在后台运行。然后，使用Windows文件资源管理器，导航到One Drive for Business位置，然后像平常一样双击该文件