About the gray condition of Word calling MathType button

  Due to the need of personal Word formula numbering, it is easier and more convenient to use MathType's formula insertion function than using Word's own functions to achieve "formula centered and labeling to the right". However, it is facing the problem of compatibility between Word2016 and MathType.
  Most of the methods on the Internet are to copy the Office Support files and ".wll" files of MathType to the relevant Office folders, or to open the trusted items and macro settings, but none of them solves the problem of the MathType button being gray.
  Later, I thought to myself, was it the problem that I installed office first and then MathType? After all, when I installed MathType, there was the following prompt. Does

this mean that some Office items have been modified when MathType was installed, so I decided to uninstall MathType and restart Installation, the actual measurement is really effective.
  After reinstalling MathType, the MathType Commands 6 For Word 2016.dotm file C:\Program Files\Microsoft Office\root\Office16\STARTUP不同用户安装路径不同）
already exists in the following path of Office ( .   At this time, you have the MathType option when you enter Word, but it is still grayed out, just put the MathType path Copy the MathPage.wll file to the Office-related path, and then select "Disable all macros without digital signature" in the macro settings of the office.

Specific steps are as follows:

1. Make sure to install Office first and then MathType, here I use Office2016 and MathType6.9.
2. After installing MathType, copy D:\MathType\MathPage\64（32位路径为...\MathPage\32）the MathPage.wll file in the installation path to the Office installation path C:\Program Files\Microsoft Office\root\Office16（用户根据路径自己设定）.
3. Open Word, follow the path of "File -> Options -> Trust Center -> Trust Center Settings -> Macro Settings" to select the "Disable all macros without digital signature" option.

So far, just enjoy the convenience that MathType brings to Word.