注册表中的LoadBehaviour是什么?应该是3 ...

What is the LoadBehaviour in the registry? It should be 3...

要查找，请查看

• 32位Word => Root \ Software \ Microsoft \ Office \ Word \ Addins \ add-in ID
• 64位Word => Root \ Software \ Wow6432Node \ Microsoft \ Office \ Word \ Addins \ add-in ID

根目录是 HKEY_CURRENT_USER 或 HKEY_LOCAL_MACHINE ，具体取决于是为当前用户还是为每个用户安装了该插件.

where Root is HKEY_CURRENT_USER or HKEY_LOCAL_MACHINE, depending on whether the addin is installed for current user or everyone.

如果LoadBehaviour的值不是3，则将其更改为3并重新启动Word.

If the value for LoadBehaviour is not 3, then change it to 3 and restart Word.

这是关于它的Microsoft文档:

Here is the Microsoft docs about it: Registry entries for VSTO Add-ins

如果仍然无法正常运行，请尝试重新启用，因为可能已硬禁用:

If it still does not work, try to re-enable as it might be hard disabled:

• 在"管理"框中，将" COM加载项"更改为"禁用的加载项"，然后单击"执行".
• 选择加载项，然后单击启用.点击关闭.现在可以再次加载该加载项...
• 返回 Manage 框中，将 Disabled Add-ins 更改为 COM Add-ins ，然后单击 Go .
• 选中禁用的加载项旁边的复选框.点击确定.

• In the Manage box, change COM Add-ins to Disabled Add-ins, and click Go.
• Select the add-in and click Enable. Click Close. Now the add-in can be loaded again...
• Back in the Manage box, change Disabled Add-ins to COM Add-ins, and then click Go.
• Check the checkbox next to the disabled add-in. Click OK.

这是关于它的Microsoft文档:

Here is the Microsoft docs about it: How to: Re-enable a VSTO Add-in that has been disabled

此外，如果您尚未执行此操作，则值得将此页面上的VSTO_SUPPRESSDISPLAYALERTS设置为0:

Also, if you haven't done this already, it is worth setting VSTO_SUPPRESSDISPLAYALERTS to 0 as described on this page: How do I enable VSTO error / display alerts?

如果上述方法均无济于事，则值得通过添加或删除程序对 Office 进行在线修复.

If none of the above helps, then it is worth doing a Online repair of Office from Add or Remove Programs.