Windows 7/8.1 Preview Rollup Updates (October 15, 2019)

Windows Update[German]As of October 15, 2019, Microsoft Preview has released Rollup Updates for Windows 7 and Windows Server 2008 R2 SP1. At the same time, a preview rollup update for Windows 8.1 and Windows Server 2012/ R2 was released.


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Preview Rollup Updates are optional, quasi for testing, their content will be released for the following regular patchday.

Updates for Windows 7/Windows Server 2008 R2

A preview rollup update has been released for Windows 7 SP1 and Windows Server 2008 R2 SP1. The update history for Windows 7 can be found on this Microsoft page.

KB4519972 (Preview Monthly Rollup) Windows 7/Windows Server 2008 R2

Update KB4519972 (Preview Rollup for Windows 7 SP1 and Windows Server 2008 R2 SP1) contains improvements and bug fixes that will be rolled out in the following month. The following changes are listed in the KB article.

  • Updates time zone information for Norfolk Island, Australia. 
  • Updates time zone information for the Fiji Islands. 
  • Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows. For more information, see KB4525208 (doesn’t exists).
  • Addresses an issue that prevents netdom.exe from displaying the new ticket-granting ticket (TGT) delegation bit for the display or query mode.

The passage ‘Addresses an issue with evaluating the compatibility status of the Windows ecosystem’ is not available to me, the linked KB article does not exist. Microsoft states that no issues are known. Microsoft states that VBScript could not be disabled by default in Internet Explorer 11 as planned. The update is provided by Windows Update and WSUS and can be downloaded from the Microsoft Update Catalog. Microsoft strongly recommends that you install the latest Servicing Stack Update (SSU) before installing it. The SHA-2 updates are also required – see the KB article for details. But since it is a preview update, I would hide it.

Updates for Windows 8.1/Windows Server 2012 R2

A preview rollup update has been released for Windows 8.1 and Windows Server 2012 R2. The update history for Windows 8.1 can be found on this website.  


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KB4520012 (Preview Monthly Rollup) Windows 8.1/Windows Server 2012 R2

Update KB4520012 is available for Windows 8.1 and Windows Server 2012 R2 as Preview of Monthly Rollup. This is not a security update. The preview rollup addresses the following issues:

  • Updates time zone information for Norfolk Island, Australia. 
  • Updates time zone information for the Fiji Islands. 
  • Addresses an issue with evaluating the compatibility status of the Windows ecosystem to help ensure application and device compatibility for all updates to Windows. For more information, see KB4525208 (not available).
  • Addresses an issue that prevents netdom.exe from displaying the new ticket-granting ticket (TGT) delegation bit for the display or query mode.
  • Addresses an issue with a race condition between the volume mount process (within fileinfo.sys) and the deregistration of filter notifications that causes the operating system to stop working on certain virtual machines. The error code is “0x7E.” 
  • Addresses an issue in security bulletin CVE-2019-1318 that may cause client or server computers that don’t support Extended Master Secret (EMS) RFC 7627 to have increased connection latency and CPU utilization. This issue occurs while performing full Transport Layer Security (TLS) handshakes from devices that don’t support EMS, especially on servers. EMS support has been available for all the supported versions of Windows since calendar year 2015 and is being incrementally enforced by the installation of the October 8, 2019 and later monthly updates.

The update is provided via Windows Update, WSUS, and the Microsoft Update Catalog. Microsoft strongly recommends that you install the latest Servicing Stack Update (SSU) before installing it. But since it is a preview update, I would hide it. Microsoft only reports one known problem in article KB4520012 – certain file operations fail on Cluster Shared Volume (CSV).

Similar articles:
Microsoft Office Patchday (1. Oktober 2019)
Microsoft Security Update Summary (October 8, 2019)
Patchday: Updates for Windows 7/8.1/Server (Oct. 8, 2019)
Patchday Windows 10-Updates (October 8, 2019)
Patchday Microsoft Office Updates (October 8, 2019)


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