Patchday: Updates for Windows 7/Server 2008 R2 (Nov. 10, 2020)

Windows Update[German]On November 10, 2020 Microsoft released various (security) updates for Windows 7 SP1 (ESU) and Windows Server 2008 R2. Here is an overview of these updates.


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Updates for Windows 7/Windows Server 2008 R2

For Windows 7 SP1 and Windows Server 2008 R2 SP1 a rollup and a security-only update have been released. However, these updates are only available for systems with ESU license. The update history for Windows 7 can be found on this Microsoft page.

Starting January 15, 2020, Windows 7 will display a full-screen notification of the end of support in Starter, Home Basic, Home Premium, Professional (without ESU license) and Ultimate. This must then be closed by the user.

As of January 14, 2020, Windows 7 SP1 and Windows Server 2008 R2 SP1 have reached the end of support and will in future only receive paid security updates as part of the ESU program. ESU license holders are advised to take a look at the Windows Message Center for details.

Microsoft last updated the Techcommunity article on the ESU program on Oct. 3, 2020. Please refer to the notes on requirements (SSU, SHA-2). In addition, for ESU systems the update KB4538483 must be installed manually from the Update Catalog (see Windows 7 ESU-Update KB4538483 (May 2020) and at the end of July 2020 the preparation KB4575903 (see Windows 7 ESU Preparation Package Update KB4575903 (July 31, 2020)).

Since the updates are offered in the Microsoft Update Catalog, do not try to install them on systems without an ESU license. The installation fails and a rollback is performed. But what works: Using the BypassESU methods (see Windows 7: Forcing February 2020 Security Updates – Part 1). ByPassESU v9 still works for the November 2020 patches (see this German comment).

Important: Starting in July 2020 all Windows updates disable the RemoteFX vGPU feature due to the CVE-2020-1036 vulnerability (see also KB4570006). After installing this update, attempts to start virtual machines (VM) with RemoteFX vGPU enabled will fail.

KB4586827 (Monthly Rollup) for Windows 7/Windows Server 2008 R2

Update KB4586827 (Monthly Quality Rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1) contains (besides the security fixes from last month) improvements and bug fixes and addresses the following items:

  • Corrects the DST start date for the Fiji Islands to December 20, 2020.
  • Security updates to Windows Graphics, Windows Silicon Platform, Windows Authentication, Windows Core Networking, Windows Peripherals, Windows Network Security and Containers, Windows Hybrid Storage Services, and Windows Remote Desktop.

Compared to the previous months, nothing has changed for ESU systems. This update is automatically downloaded and installed via Windows Update. The package is also available via Microsoft Update Catalog and is distributed via WSUS. Details about the requirements and known issues can be found in the KB article (without ESU the installation fails and there is a "STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)" error).

KB4586805 (Security Only) for Windows 7/Windows Server 2008 R2

Update KB4586805 (Security-only update) is available for Windows 7 SP1 and Windows Server 2008 R2 SP1 with ESU license. The update addresses the following items.

  • Corrects the DST start date for the Fiji Islands to December 20, 2020.
  • Security updates to Windows Graphics, Windows Silicon Platform, Windows Authentication, Windows Core Networking, Windows Peripherals, Windows Network Security and Containers, Windows Hybrid Storage Services, and Windows Remote Desktop.

The update is available via WSUS or in the Microsoft Update Catalog. To install the update, the preconditions listed in the KB article and above for the rollup update must be met. The update has the KB articlesKB4586805 described errors. Additionally, the security update KB4586768 for Internet Explorer 11 should be installed.


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Das Update gibt es per WSUS oder im. Um das Update zu installieren, sind die im KB-Artikel und oben beim Rollup Update aufgeführten Vorbedingungen zu erfüllen. Das Update weist die KB-Artikel  beschriebenen Fehler auf. Zudem sollte das Sicherheitsupdate für den Internet Explorer 11 installiert werden.

Similar articles:
Microsoft Office Patchday (November 3, 2020)
Microsoft Security Update Summary (November 10, 2020)
Patchday: Windows 10-Updates (November 10, 2020)
Patchday: Updates for Windows 7/Server 2008 R2 (Nov. 10, 2020)
Patchday: Windows 8.1/Server 2012-Updates (Nov. 10, 2020)


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