KB4048960 itself is from Windows Update Catalog (it was removed in 2019 as per Microsoft’s lifecycle policy for preview updates). However, its feature set – KPTI, branch predictor hardening, and Hyper-V isolation – lives on in every modern Windows build as a permanent security baseline.
is a critical security update released by Microsoft on November 14, 2017, specifically for Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 . While it was designed to bolster system security, it is best known in the IT community for causing a widespread "Unexpected error from external database driver (1)" in applications using the Microsoft Jet Database Engine. Overview of KB4048960 kb4048960
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Jet\4.0\Engines\Excel\ KB4048960 itself is from Windows Update Catalog (it
Below is an article summarizing the key aspects of this update. Understanding Microsoft Update KB4048960 While it was designed to bolster system security,