Microsoft has released an optional out-of-band update for all supported versions of Windows 10 to address an issue that prevents 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 for Windows Server versions 2004 and 20H2.
“An optional out-of-band update is now available from the Microsoft Update Catalog to address an issue where Internet Explorer 11 and applications that use the WebBrowser control may fail to open PDF files,” the company said. He says.
“Also, a PDF can be displayed as a gray background when using the Adobe Acrobat plug-in,” Microsoft adds in a support article.
Internet Explorer users are only affected by this error if they turn on “Enable 64-bit processes for Enhanced Protected Mode” in the Advanced tab on Internet Options.
Because KB5004760 is a cumulative update, you will not have to deploy any previous update before installing it.
You can download and install it manually from the Microsoft Update Catalog. Administrators can also import it into Windows Server Update Services (WSUS) manually.
Alternative solution also available
Microsoft also provides solution measures for affected customers who cannot immediately install cumulative update KB5004760.
To ensure that you can open PDF files on your device even if you have been affected by this error, you can:
- Open the PDF file directly in Adobe Acrobat rather than within IE11 or the affected application.
- For IE11 only: disable the setting in the Advanced tab of Internet Options call Enable 64-bit processes for Enhanced Protected Mode.
In related news, Microsoft released the first build of Windows 10 without the Internet Explorer web browser for Windows Insiders on the Dev Channel just over a month ago.
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.