A family of Microsoft word processing software products for creating web, email, and print documents.
This matches a known Mac Word save issue where documents may stop saving normally after reopening, and Save As works as a temporary workaround.
Try these steps in order:
- Test in a new macOS user account
- Go to System Settings > Users & Groups.
- Create a new user account.
- Sign in to that account and test saving the same way: open a document, save it, close Word, reopen the document, edit, and save again.
- If saving works there, the problem is likely related to the current user profile or that profile’s Office setup.
- Check the save location permissions
- Since files are being saved locally on the Desktop, verify the issue is not caused by a permissions problem with the current profile.
- The new-user test above is the supported way to confirm whether the current profile is the cause.
- Reinstall Office for Mac if the issue continues
- If the problem still happens, or moving to another profile is not practical, uninstall Office for Mac and then reinstall it from the subscriptions page of the Microsoft account.
- If Word closes unexpectedly or work is lost, check AutoRecovery
- In Finder, select Go > Go To Folder or press Shift + Command + G.
- Open:
/Users/<username>/Library/Containers/com.Microsoft/Data/Library/Preferences/AutoRecovery - If recovered files are present, save them immediately.
- Note: this folder is hidden, and if Don’t Save was chosen when closing a file, the AutoRecover file is deleted.
- If Word repeatedly prompts to save template changes on quit
- That can be caused by an add-in or a macro-virus issue affecting Normal.dotm.
- Update virus protection software and check whether an add-in is causing the behavior.
If the issue is specifically that a document reopens, asks to save, then closes and instantly reopens without actually saving, the supported guidance in context is to first rule out a permissions/profile problem with a new macOS user account, then reinstall Office for Mac.