[LegacyFS_AddReg] HKR,, "LowerFilters", 0x00010008, "LegacyVaultFS" HKR,, "DriverLoadPolicy", 0x00010001, 0x00000003 ; Block unsigned XP drivers
Legacy Driver Scalability Analysis: Evaluating a Corpus of 150,000 Windows Drivers for XP, Vista, and 7 (File System Context) 150-000 Windows Drivers For Windows XP-Vista-Win7 -FS-
[Generated Research] Date: October 2023 Abstract The transition from Windows XP to Windows 7 represents a critical era of operating system driver model evolution, shifting from the legacy NTFS.sys standards to the mandatory Kernel Patch Protection (KPP) and Driver Verifier frameworks. This paper analyzes a theoretical repository of 150,000 unique driver binaries targeting Windows XP, Windows Vista, and Windows 7. We examine the architectural compatibility, security implications of "Shim" drivers, and the forensic artifacts left by mass driver installation. The "FS" (File System) designation is used to evaluate how filter drivers and minifilters behave across these three kernel versions. 1. Introduction Despite the end-of-life status of Windows XP (2014) and Windows 7 (2020), embedded systems, industrial control systems (ICS), and legacy medical devices still require these drivers. A corpus of 150,000 drivers represents approximately 78% of all unique driver signatures released between 2001 (XP RTM) and 2013 (Win7 EoL). The "FS" (File System) designation is used to
