Security News > 2021 > June > Windows 10 KB5004760 emergency update fixes PDF opening issue
Microsoft has released an optional out-of-band update for all supported Windows 10 versions to address an issue preventing customers from opening PDF documents using some applications.
The KB5004760 emergency update is available for devices running client editions of Windows 10 versions 2004, 20H2, and 21H1, as well as Windows Server versions 2004 and 20H2. "An out-of-band optional update is now available on the Microsoft Update Catalog to address an issue in which Internet Explorer 11 and apps using the WebBrowser control might fail to open PDFs," the company says.
Because KB5004760 is a cumulative update, you will not have to deploy any previous update before installing it.
Admins can also import it into Windows Server Update Services manually.
Microsoft also provides workaround measures for impacted customers who cannot immediately install the KB5004760 cumulative update.
The Windows 11 announcement also said that Internet Explorer will be disabled in Windows 11 as the new Chromium-based Microsoft Edge now includes the IE Mode feature.
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