visualstudio.microsoft.com/vs/older-downloads/
Remember: Always download developer tools directly from Microsoft. Avoid "cracked" or repackaged installers from torrents or file-sharing sites – they are a major source of ransomware.
Microsoft Visual Studio 2015 is an older version (released in 2015). It has been out of mainstream support for several years. For security, compatibility, and features, Microsoft strongly recommends using Visual Studio 2022 (the current 64-bit version) or Visual Studio 2019.