[German]On January 23, 2020, Microsoft Preview Rollup released updates for Windows Windows 8.1 and the corresponding server versions. There were no updates for Windows 7.
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 Microsoft page.
KB44534324 Preview (Monthly Rollup) for Windows 8.1/Server 2012 R2
Update KB4534324 (Preview of Monthly Rollup for Windows 8.1 and Windows Server 2012 R2) includes everything from the January 14, 2020 update, plus the new improvements and fixes.
Addresses an issue that may prevent a scroll bar from being selected when an ActiveX control implements the CScrollView class. This occurs if you move the Internet Explorer window, which then moves the scroll bar to the left.
This update is optional and is available in Windows Update but also in the Microsoft Update Catalog and via WSUS. Since it is an optional update, I would not install it. In case of a manual installation the latest Servicing Stack Update (SSU KB4524445) has to be installed before.
The update has a known problem: Certain actions, such as renaming, that you perform on files or folders located on a Cluster Shared Volume (CSV) may fail with the error “STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)”. This occurs when you perform the action on a CSV owner node from a process that does not have administrator privileges. See the KB article for details.
Microsoft Office Patchday (January 7, 2020)
Microsoft Security Update Summary (January 14, 2020)
Patchday: Updates for Windows 7/8.1/Server (Jan. 14, 2020)
Patchday Microsoft Office Updates (January 14, 2020)
Preview Updates for Windows 8.1/Server (January 23, 2020)
Windows 10-Updates (January 23, 2020)