Dear LindaWesson,
Good day. Thank you for posting to Microsoft Community.
As per your description, when you edited on the Word document, there were always some things that you didn't want to happen. It continued nearly 3 months. And you got the error massage:
"This file is in use by another application or user. C:\Users<username>\AppData\Roaming\Microsoft\Templates".
It seems occurred because of your Word Templates. Please try to reset the Normal template and check if it works for you.
Here are steps for you reference:
- Close all Microsoft Office application before you reset it.
- Open C:\Users\yourusername\Appdata\Roaming\Microsoft\Templates and delete the file Normal.dotm.
- Open the Word and close it, there will be popped up “Changes have been made to Normal.dotm, would you like to save them?”, choose Save, and Word will generate a new normal.dotm file. Then try again. Note: Please back up the previous Normal Template.
Let me know if you have any question. Thank you for patience and understanding.
Sincerely,
Claire | Microsoft Community Moderator