How to prevent MS Word for the Mac from spontaneously expanding document view

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2026-10-06T16:07:34.2333333+00:00

I have MS Word for the Mac, Version 16.113.3 (26092714), running macOS Tahoe 26.6.2 on an all-in-one iMac desktop . Apparently there is a "feature" that causes MS Word for the Mac to spontaneously expand its window from a partial screen to the full screen. I have seen this happen at a time when I am not touching the mouse or the keyboard.

From what I have learned on line is that this is caused by MS Word for the Mac monitoring it's window size compared to space available on the screen, and when it senses that space is available it spontaneously expands to fill the space. If the original window is displaying a single page it switches to multiple pages per window. This is unbelievable behavior, really, and VERY annoying!!!

How can I keep this from happening?

Microsoft 365 and Office | Word | For home | MacOS
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  1. AI answer

    2026-10-06T16:07:49.8133333+00:00

    This behavior is commonly tied to macOS window tiling or Word reusing the last view state.

    Try these steps in order:

    1. In macOS, open System Settings > Desktop & Dock.
      • Turn off Tile by dragging windows to screen edges.
      • This addresses the case where a Word window expands when it touches a screen edge.
    2. If Word is currently full screen, exit it with Control + Command + F.
      • Then resize the Word window to the preferred size.
      • Close all documents while leaving Word open, then quit Word and reopen it.
      • This can help Word remember the preferred window state instead of reopening full screen.
    3. If the problem continues, reset Word preferences.
      • Warning: this removes custom preferences such as keyboard shortcuts and toolbar or dictionary changes.
      • Quit all programs.
      • In Finder, open Go > Home > Library. On newer macOS versions, use Go, hold Option, then choose Library.
      • Open Preferences and move com.microsoft.Word.plist to the desktop.
      • Open the Microsoft folder in Preferences and move com.microsoft.Word.prefs.plist to the desktop.
      • Start Word and test.
      • If the issue is gone, quit Word and return one file at a time to identify the corrupt preference file. Move the corrupt one to Trash.
    4. If resetting preferences does not help, test the Word template.
      • Quit all programs.
      • Open Library > Application Support > Microsoft > Office > User Templates.
      • Move Normal.dotm to the desktop.
      • Start Word and test again.
      • If the issue stops, quit Word and delete the old Normal.dotm.
    5. If the window is not actually resizing but the document view is changing to show multiple pages, check the zoom behavior.
      • Word is reported to reuse the last zoom setting used.
      • Save and close a document at the preferred zoom, then test whether new documents open the same way.

    If the issue started after a macOS change and specifically happens when windows approach screen edges, step 1 is the most directly relevant fix.

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  2. Bob Jones AKA CyberTaz MVP 437.9K Reputation points
    2026-10-06T17:26:38.6433333+00:00

    Update Tahoe. Version 26.7.1 is the current release. See whether that resolves the issue.

    Windowing operations are owned by the OS. The program being used has nothing to do with it other than providing controls for manually adjusting window size, position, etc..

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