You need (or later cumulative updates) to enable it. Without this update, GetSystemTimePreciseAsFileTime is not present in kernel32.dll , and your code will fail at runtime.
The C++ std::chrono::system_clock::now() on Windows 7 ultimately calls GetSystemTimeAsFileTime – no improvement without the update. getsystemtimepreciseasfiletime windows 7 upd
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Released in February 2013, this update was primarily aimed at improving DirectX 11.1 support, but it also brought several system API enhancements, including: "score":0.8]) Released in February 2013
