Fix Word 365 System Error &H8000FFFF When Running Macros

Ensure all Word documents are saved and the application is fully closed before proceeding.

Press the Windows Key + R on your keyboard to open the Run command window.

Type %appdata%\Microsoft\Templates into the Run dialog box and press Enter.

Locate the file named Normal.dotm (or just Normal if extensions are hidden). Right-click it, select Rename, and change the name to Normal.old.

Open Microsoft Word again. A new, clean Normal.dotm file will be generated automatically. Try recording or running a simple macro to confirm the error is resolved.

Locate and open the plain text backup (such as a Notepad file) where your original VBA code is stored.

In Microsoft Word, press Alt + F11 to launch the Visual Basic for Applications editor.

In the left-hand Project Explorer pane, right-click 'Normal', navigate to Insert, and select 'Module'.

Paste your backed-up macro code into the new blank module. Go to the top menu, select Debug, and click 'Compile Normal' to check for any underlying syntax errors.

Highlight the text, phrase, or paragraph you frequently use directly in your Word document.

Navigate to the Insert tab, click on Quick Parts in the Text group, hover over AutoText, and click 'Save Selection to AutoText Gallery'.

Whenever you need the snippet in the future, simply begin typing its designated name and press Enter when prompted, bypassing the need for complex macros entirely.