Tech moves fast! Stay ahead of the curve with Techopedia!
Join nearly 200,000 subscribers who receive actionable tech insights from Techopedia.
Windows File Protection (WFP) is subsystem in Microsoft Windows that debuted in the Windows 2000 operating system to protect and prevent critical system files from modification. Core system programs should not be modified or overwritten as this could cause complications, especially with dynamically link libraries (DLL) and any other applications that could be potentially using them.
Windows File Protection makes use of file signatures and catalog files to check the versions of protected system files. If protected files are modified in an unsupported way, WFP will restore the original version of the program. The core goal of Windows File Protection is to ensure system stability by protecting critical Windows system files (.dll, .ocx,.sys,.exe).