Hi @Autumn R
Could you please check which version of Office are you using now?
To get this information, you may go to Word > File > Account > Product Information to have a check.
Please make sure the Office is updated to the latest.
If the Office is already the latest, I suggest you perform an Online Repair for Office from Control Panel.
I also suggest you ao to Task Management > Performance to check if your PC's hardware usage is high.
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