Windows 10 · Release · Security update (Patch Tuesday)

June 9, 2020—KB4561649 (OS Build 10240.18608)

What's in this update

Updates to improve security when using Internet Explorer. Updates to improve security when Windows performs basic operations. Updates to improve security when using Microsoft Office products. Updates to improve security when using external devices (such as game controllers, printers, and web cameras) and input devices (such as a mouse, keyboard, or stylus). Improves security in the Microsoft Store. Updates for verifying usernames and passwords. Updates for storing and managing files.

From Microsoft's release notes for KB4561649.

Microsoft's known issues — KB4561649

  • Issue Known issue After installing this update, certain printers might fail to print. The print spooler might throw an error or close unexpectedly when attempting to print, and no output will come from the affected printer. You might also encounter issues with the apps you are attempting to print from. You might receive an error from the app or the app might close unexpectedly. Note This issue might also affect software-based printers, for example printing to PDF. Workaround: This issue is resolved in KB4567518 .

Microsoft's release notes for KB4561649 ›

Known issues — reported on the forum

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In the news

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Discussed on the forum

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