The most common choice for modern Windows is the MinGW-w64 project. You can find pre-built 6.3.0 toolchains on SourceForge .
For 32-bit native Windows development using the original MinGW project, files are hosted in the MinGW Base repository . mingw 6.3 download
MinGW 6.3 remains a specific, required version for many legacy projects, embedded development environments, and third-party software like older versions of MATLAB. While newer versions of GCC (13.0+) are now available, the stability and compatibility of the 6.3.0 release make it a frequent target for developers needing a reliable toolchain for Windows. Primary Download Links for MinGW 6.3 The most common choice for modern Windows is
Depending on your architecture and project needs, you can find official builds through these sources: required version for many legacy projects