If you still want a free copy from torrent sites or "direct download" blogs, you need to know what you're risking:
Before downloading, ensure your PC can handle the version you choose. The Definitive Edition Original Classic Version Windows 10/11 (64-bit) Windows 2000/XP/7/10 Processor Intel Core i5-6600K / AMD FX-6300 800 MHz Intel Pentium III Memory 8 GB RAM (16 GB Recommended) 128 MB RAM (256 MB Recommended) Graphics NVIDIA GTX 760 2GB / AMD R9 280 32 MB VRAM (DirectX 9.0) Storage 10 GB - 45 GB available space ~1.55 GB available space