Getsystemtimepreciseasfiletime Windows 7: Patched

Microsoft made a conscious decision: backporting GetSystemTimePreciseAsFileTime to Windows 7 would require significant changes to the kernel’s time interpolation logic. Additionally, the function relies on newer HAL (Hardware Abstraction Layer) features for continuous timestamp calibration. Since Windows 7 exited mainstream support in 2015 (extended support until 2020, but no new features), Microsoft never officially released it.

However, caveats remain:

When these patches are installed on Windows 7: getsystemtimepreciseasfiletime windows 7 patched

Fall back to the standard GetSystemTimeAsFileTime . The Bottom Line but no new features)

, which has a resolution of ~15.6ms, the "Precise" version combines system time with the performance counter to achieve sub-microsecond accuracy. Microsoft Learn Potential Solutions Microsoft never officially released it. However