Fix Word Template’s Building Blocks Missing After Reinstall of Office

After reinstalling Office, your custom templates may still be present, but the Building Blocks — such as cover pages, headers, footers, and quick tables — that you stored in those templates might be gone. This happens because the Building Blocks Organizer relies on a specific storage file called Building Blocks.dotx, which can be overwritten or replaced during the reinstall process. This article explains why the Building Blocks disappear, how to restore them from a backup or rebuild them, and what to do if you have no backup.

Why Building Blocks Disappear After an Office Reinstall

Building Blocks in Word are stored in a special template file named Building Blocks.dotx. This file lives in a hidden system folder under your user profile. When you reinstall Office, the installer may replace the existing Building Blocks.dotx with a fresh, default version that contains only Microsoft’s built-in Building Blocks. If you had saved custom Building Blocks — for example, a company cover page or a custom header — those entries are lost unless you have a backup of the old file.

A second cause is that the Normal.dotm template, which also can store Building Blocks, may be reset during the reinstall. Word reads Building Blocks from both Building Blocks.dotx and any global templates (like Normal.dotm) that are loaded as add-ins. If Normal.dotm is replaced, any Building Blocks stored there are gone.

A third, less common cause is that the Office add-in responsible for loading the Building Blocks template becomes disabled during the reinstall. Word has a disabled items list that prevents problematic add-ins from loading. The Building Blocks add-in might get flagged and turned off, making the custom blocks invisible even though the .dotx file is intact.

Steps to Recover Missing Building Blocks From a Backup

If you have a backup of your old Building Blocks.dotx file — for example, from a recent file-level backup or from a copy you made before reinstalling — you can restore it manually. Follow these steps to locate the current file and replace it with your backup.

1. Close Word completely
   Make sure no Word processes are running. Check Task Manager for any WINWORD.EXE entries and end them if necessary.
2. Open the Building Blocks folder
   Press Win + R, type %appdata%\Microsoft\Document Building Blocks\1033, and press Enter. The number 1033 corresponds to English (US) locale; if you use a different language, replace 1033 with your locale ID (for example, 1036 for French).
3. Rename the current Building Blocks.dotx file
   Right-click Building Blocks.dotx and choose Rename. Change the name to Building Blocks.old. This preserves the default file in case you need to revert.
4. Copy your backup file into the folder
   Locate your backup copy of Building Blocks.dotx. Copy it and paste it into the folder you opened in step 2.
5. Restart Word and test
   Open Word. Go to Insert > Quick Parts > Building Blocks Organizer. Your custom Building Blocks should now appear in the list. If they do not appear, the backup file may be from a different Office version or may be corrupted.

Steps to Recover Building Blocks Stored in Normal.dotm

If you stored Building Blocks in the Normal.dotm global template, a reinstall may have replaced that file. Word creates a fresh Normal.dotm when the old one is missing or corrupted. To recover Building Blocks from a backup of Normal.dotm, follow this process.

1. Close Word
   Terminate all Word instances.
2. Open the Templates folder
   Press Win + R, type %appdata%\Microsoft\Templates, and press Enter.
3. Rename the current Normal.dotm
   Right-click Normal.dotm and rename it to Normal.old. This prevents Word from loading the default template.
4. Copy your backup Normal.dotm into the folder
   Paste your backup copy into the Templates folder.
5. Restart Word and verify
   Open Word. Check Insert > Quick Parts > Building Blocks Organizer. If your custom blocks are present, the recovery succeeded. If not, the backup Normal.dotm may be from a different Office version or may be damaged.

If You Have No Backup: Rebuild Building Blocks From Scratch

Without a backup, you cannot recover the lost Building Blocks. You must recreate them manually. This is time-consuming, but you can streamline the process by creating a new global template dedicated to your custom Building Blocks.

1. Create a new template file
   Open Word, go to File > New, and select Blank document. Press Ctrl + S. In the Save as type dropdown, choose Word Template (.dotx). Name it CustomBuildingBlocks.dotx and save it to a folder you can find easily, such as Documents.
2. Add your custom Building Blocks
   For each block you want to recreate — for example, a header, footer, or cover page — create the content in a new document. Select the content, go to Insert > Quick Parts > Save Selection to Quick Part Gallery. In the Create New Building Block dialog, set the Gallery to the appropriate type (Headers, Footers, Cover Pages, etc.) and set Save in to your new CustomBuildingBlocks.dotx template.
3. Load the template as a global add-in
   Go to Developer > Document Template. If you do not see the Developer tab, right-click the ribbon and choose Customize Ribbon, then check Developer in the right pane. In the Templates and Add-ins dialog, click Add, browse to your CustomBuildingBlocks.dotx file, and select it. Check the box next to the template name and click OK.
4. Test the Building Blocks
   Open a new document. Go to Insert > Quick Parts > Building Blocks Organizer. Your custom blocks should appear. If they do not, verify that the template is listed in Developer > Document Template and that the checkbox is selected.

What to Do If Building Blocks Are Missing but the Template File Is Intact

In some cases, the Building Blocks.dotx file is still present after reinstall, but Word does not load it. This usually means the Building Blocks add-in has been disabled. Check the disabled items list and re-enable the add-in.

1. Open the Disabled Items dialog
   Go to File > Options > Add-ins. At the bottom of the window, next to Manage, select Disabled Items from the dropdown and click Go.
2. Re-enable the Building Blocks add-in
   If you see an entry named Building Blocks or something similar, select it and click Enable.
3. Restart Word
   Close and reopen Word. Check Insert > Quick Parts > Building Blocks Organizer. The custom blocks should now appear.

Common Issues After Recovering Building Blocks

Building Blocks Appear but Do Not Insert Correctly

If you restored a Building Blocks.dotx from an older Office version (for example, Office 2016 to Microsoft 365), the blocks may insert with incorrect formatting or missing content. This happens because the building block XML schema changed between versions. The only reliable fix is to recreate the blocks using the current version of Word.

Building Blocks Organizer Shows Duplicate Entries

If you restored a backup and also kept the default Building Blocks.dotx, you may see two copies of each built-in block. To fix this, delete the duplicate file. Go to the Building Blocks folder, remove the restored backup, and keep only the default file. Then recreate your custom blocks in the default file.

Word Crashes When Opening Building Blocks Organizer

A corrupted Building Blocks.dotx file can cause Word to crash. Rename the file to Building Blocks.corrupt and restart Word. Word will create a new default file. If the crash stops, the old file was damaged. You will need to rebuild your custom blocks from scratch.

Restoring Building Blocks From Backup vs Rebuilding From Scratch

Item	Restore From Backup	Rebuild From Scratch
Time required	5–10 minutes	30 minutes to several hours depending on number of blocks
Risk of data loss	None if backup is from same Office version	None — you create everything fresh
Compatibility with new Office version	May fail if backup is from older version	Fully compatible
Requires backup file	Yes	No
Preserves custom gallery assignments	Yes	No — you must reassign each block to the correct gallery

After an Office reinstall, missing Building Blocks are almost always caused by a replaced Building Blocks.dotx file or a disabled add-in. If you have a backup, restoring it takes only a few minutes. Without a backup, you must rebuild each block manually and save them to a new global template. To avoid this problem in the future, regularly back up your Building Blocks.dotx file located in %appdata%\Microsoft\Document Building Blocks\1033. You can also export your Building Blocks by copying the entire 1033 folder to a safe location. If you work with many custom blocks, consider storing them in a dedicated .dotx template rather than in Normal.dotm, because Normal.dotm is more likely to be replaced during a reinstall.