May 8, 2018, update for Office Online Server (KB4011025)

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This article describes update 4011025 for Microsoft Office Online Server that was released on May 8, 2018. This update has a prerequisite.

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Improvements and fixes

This update contains the fix for the following issues:

Assume that you use Office Online Server to save some changes of pictures or some other objects of a Word document in SharePoint Server 2016. When you open the Word document in Office clients or Office Online Server again, you receive a message that states the Word document is corrupted.
Assume that you deploy two Office Online Servers in a SharePoint Server farm. When you try to coauthor an Excel workbook together with another user by using Excel Online, the workbook is locked and the operation freezes.

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How to download and install the update

Download Center

This update is only available for manual download and installation from the Microsoft Download Center.

Download update KB4011025 for SharePoint Enterprise Server 2016

Virus-scan claim

Microsoft scanned this file for viruses by using the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to it.

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Update information

Prerequisites

To apply this update, you must have Microsoft Office Online Server installed.

Restart information

You may have to restart the computer after you install this update.

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References

Learn about the terminology that Microsoft uses to describe software updates. The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office.

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