Security News > 2021 > September > Windows 10 KB5005611 update fixes Microsoft Outlook issues
Microsoft has released the optional KB5005611 Preview cumulative update for Windows 10 2004, Windows 10 20H2, and Windows 10 21H1. This update fixes bugs in Microsoft Outlook and makes it easier to mitigate the PrintNightmare vulnerability.
This cumulative update is part of Microsoft's September 2021 monthly "C" update, allowing Windows users to test the upcoming fixes before they are automatically deployed in the forthcoming October 2021 Patch Tuesday.
Windows users can install this update by going into Settings, clicking on Windows Update, and select 'Check for Updates.
Windows 10 users can also manually download and install the KB5005611 preview update from the Microsoft Update Catalog.
In the Windows 10 KB5005611 preview update, Microsoft has introduced numerous fixes for Microsoft Outlook and News and Interests that people have been experiencing since previous updates.
For Microsoft Outlook, this update fixes a bug causing the application to stop working suddenly or for an add-in to prevent you from composing replies to emails.
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