
Hi,
Did you use the default font?
What version of Office did you use?
Did this problem only appear in Word?
Did this problem appear in all Word documents?
Did you get any error message?
I suggest you check if this problem also appear in Excel or other Office programs.
Create a new document in desktop and check if this issue is still existed.
Then you can open document in safe mode running the following command: Press Win + R, type "winword /safe" in the blank box, press Enter. If it works fine in safe mode, please check the add-ins in Word and disable them.
You can also try to do an online repair for Word:
Please provide more information about your problem so that I can get more accurate solutions to this problem. I’m glad to help and follow up your reply.
If the response is helpful, please click "Accept Answer" and upvote it.
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