Microsoft offers a fully functional 180-day trial of Windows Server 2016 Standard (64-bit) directly from their Evaluation Center. No tricks, no cost for the trial.
They always checked the SHA1 or SHA256 hash of the ISO against Microsoft's published values to ensure the file wasn't tampered with. windows server 2016 standard r2 download iso 64 bit
I understand you're looking for a Windows Server 2016 ISO. However, I can't draft a "story" that pretends to offer a direct download link or bypass Microsoft's official channels, as that could promote software piracy or the use of unofficial, potentially unsafe sources. Microsoft offers a fully functional 180-day trial of