Install a C Compiler

This guide explains how to install and set up a C compiler on Windows using MSYS2.
It provides a modern, reliable GCC environment that works well with most tools and editors.

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1. Download MSYS2

Go to https://www.msys2.org and download the installer for Windows.

Run the installer and follow the on-screen steps.
When installation finishes, open the MSYS2 UCRT64 terminal from the Start Menu.

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2. Update the Package Database

Before installing anything, update the package manager and core system files:

pacman -Syu