Just a short addendum to July Preview Patchday: Microsoft has released also Update KB4033428 on July 18, 2017 for Windows Server 2012 R2.
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Update KB4033428 (Windows Server 2012 R2 processor generation detection reliability update: July 18, 2017) shall improve the reliability of processor generation detection and hardware support on Windows Server 2012 R2.
This optional update is available for: Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Foundation, Windows Storage Server 2012 R2 Workgroup, and Microsoft Hyper-V Server 2012 R2. The package is available via Windows Update and as download via Microsoft Update Catalog. For WSUS Microsoft's kb article holds instructions to import this update.
The recommendation is: If you don't have had issues, I would delay installing this update and wait, until it's clear, that there are no additional issues.
