Could you please check which version of Office are you using?
To get this information, you may go to Word > File > Account > Product Information, check the Version Name and Version Number.
Then I suggest you run Word in Safe Mode to have a check with no Internet connection. Safe Mode can help us troubelshoot the COM Add-ins and startup items.
Please hold on Ctrl key, click or double-click Word icon, until Word asks do you want to start it in safe mode, then please release Ctrl key and click "Yes".
Besides, if a wireless printer is connected, it is recommended to disconnect it for a test.
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