Make sure the Windows Update service is not disabled.

The core of the issue is an operating system version mismatch:

Always verify the API exists before calling it, even if your build configuration suggests it should be available:

return 0;

typedef void (WINAPI *PGETSYSTEMTIMEPRECISEASFILETIME)(LPFILETIME);

Here is the key information regarding this function and Windows 7:

: Even if a programmer doesn't use the function, modern compilers may automatically insert calls to it for standard library features like std::chrono , making the resulting program incompatible with Windows 7.

Developers using newer libraries (like Qt 6 or recent Python/Rust versions) encounter this because those toolkits have dropped Windows 7 support to utilize newer system APIs. Proposed Solutions and Workarounds

If you cannot install KB2813345, what are your options?

Purpose

user wants a long article about "getsystemtimepreciseasfiletime windows 7 upd". This suggests they're looking for information on this specific Windows API function in the context of Windows 7 updates. The article should likely explain what the function is, its purpose, its availability on Windows 7, related updates or patches, and perhaps how to use it. I need to search for relevant information. I'll search for the keyword. search results show various issues and solutions related to this function on Windows 7. To comprehensively address the user's request, I need to gather information from multiple sources. I will open several relevant results to collect details about the function's definition, its absence on Windows 7, the resulting errors, and potential workarounds, such as using GetSystemTimeAsFileTime or dynamic loading. search results provide a good amount of information about GetSystemTimePreciseAsFileTime on Windows 7. I'll structure the article to cover the function's purpose, why it causes problems on Windows 7, the resulting errors, and solutions like using alternatives or dynamic loading. I'll also include specific examples from iperf3 and other software. The response will be a long, comprehensive article. Now I will write the response. GetSystemTimePreciseAsFileTime on Windows 7: Comprehensive Guide to Updates, Compatibility, and Solutions

: Download the latest release from the VxKex GitHub Repository. Install the package, right-click the problematic application's .exe file, select Properties , navigate to the VxKex tab, and check the box to enable extensions for that specific program. 2. Downgrade to a Windows 7-Compatible Version

There are two practical compatibility approaches for applications that need this function on Windows 7:

Ensure your build environment is configured correctly. Set _WIN32_WINNT to 0x0601 (Windows 7) to prevent the compiler from assuming Windows 8+ APIs are available: