The required fix is the . This update allows Windows 10 CRT functionality to run on older operating systems, including Windows 7 Service Pack 1. Prerequisites
PGETSYSTEMTIMEPRECISEASFILETIME pGetSystemTimePreciseAsFileTime = (PGETSYSTEMTIMEPRECISEASFILETIME)GetProcAddress( GetModuleHandle("kernel32.dll"), "GetSystemTimePreciseAsFileTime" );
The error message is a common issue for users running legacy operating systems. This fatal error prevents applications from launching entirely.
Another common hurdle is encountering compilation errors or warnings, such as: warning C4013: 'GetSystemTimePreciseAsFileTime' undefined; assuming extern returning int . These errors occur because the Windows SDK headers conditionally hide the prototype for this function based on the defined _WIN32_WINNT macro. getsystemtimepreciseasfiletime windows 7 upd
The function GetSystemTimePreciseAsFileTime is a high-precision timing API that is not natively supported on Windows 7
: Many modern libraries and languages (like Julia or Qt-based apps ) have dropped Windows 7 support as standard practice. Potential workarounds (for developers and users) Windows 7 support - General Usage - Julia Discourse
// The main feature implementation void GetSystemTimePrecise_Win7Support(LPFILETIME lpSystemTimeAsFileTime) s_startSystemTime.dwLowDateTime; ULONGLONG resultTime = startTimeInt + total100ns; The required fix is the
: Cygwin 3.5.0 and above no longer support Windows 7, leading to binaries compiled with these toolchains failing on older systems.
: On Windows 7, the core system library KERNEL32.dll only contains the older GetSystemTimeAsFileTime function. It completely lacks the higher-precision variant.
The GetSystemTimePreciseAsFileTime function , as it was first introduced in Windows 8 and Windows Server 2012. Microsoft has not backported this specific API to older versions of Windows. Unlike the older GetSystemTimeAsFileTime
Unlike the older GetSystemTimeAsFileTime , which has a lower resolution (often ≈ 15.6 milliseconds), the "Precise" version is crucial for performance profiling, audio processing, network timing, and modern game development.
Or specify it in your compiler command line:
The error is a common compatibility bottleneck for users running legacy Windows 7 systems. This crash occurs at application launch when trying to run modern applications, games, or developer runtimes on an unpatched or unsupported Windows 7 environment. Why the Error Happens on Windows 7
#include <Windows.h>