Office for Mac Issues

Fix Word Add-In Stuck Loading with host_Info Error on Mac

Adam DavisAdam Davis Oct 21, 2026 868 views

Question details

A centrally deployed Word add-in intermittently fails to load, getting stuck and redirecting to a host_Info error address.

Fix Word Add-In Stuck Loading with host_Info Error on Mac
Product
Microsoft Word
Device & OS
macOS
Scenario
Opening or using a centrally deployed Office add-in in Microsoft Word on a Mac.
Observed behavior
The add-in remains stuck on the loading screen and redirects to a URL containing host_Info=Word$Win32$16.01$en-US$$$$0#/.
Before you start

Before troubleshooting, open a new blank document to determine if the add-in loading error is isolated to a single file or affects all Word documents on your Mac.

Solution 1Recommended

Reset Word Cache via the Containers Folder

Use this solution if the add-in fails to load across all Word documents, which indicates a corrupted application cache.

Clearing the Microsoft Word cache folder forces the application to rebuild its preference files and temporary data, which often resolves persistent add-in loading issues.

1
Quit Microsoft Word

Ensure Microsoft Word is completely closed. Right-click the Word icon in the Dock and select Quit.

2
Open the Containers Folder

Click on Finder. From the top menu, select Go > Go to Folder (or press Command+Shift+G). Type ~/Library/Containers and press Return.

3
Move the Microsoft Word Folder

Locate the folder named Microsoft Word (or com.microsoft.Word in older macOS versions) and drag it to your Desktop as a backup.

4
Restart and Test

Restart your Mac, then open a new blank document in Word to verify if the add-in loads correctly.

Reset Word Cache via the Containers Folder
Data Safety: Moving the Containers folder will not delete your saved Word documents; it only resets application preferences.
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Frequently Asked Questions

What does the host_Info error mean in Word for Mac?

The host_Info error indicates that the Word add-in manifest failed to initialize properly. This is often caused by corrupted application cache files, network deployment issues, or a compatibility bug in a recent Word update.

Will removing the Microsoft Word folder from Containers delete my files?

No, moving or deleting the Microsoft Word folder from the ~/Library/Containers path only clears application preferences and temporary cache files. Your locally saved documents and OneDrive files will remain entirely safe.

How do I access the Library folder if it is hidden on my Mac?

The user Library folder is hidden by default on macOS. You can quickly access it by clicking on Finder, pressing Command+Shift+G, and pasting the exact path ~/Library/Containers into the Go to Folder search bar.