Rather than risking your system with untrusted downloads, the most convenient method is to purchase the official PC release via the Mega Man X Legacy Collection 2 on Steam.
A popular, often more stable way to play the game on PC is through PS1 emulation. Download Megaman X6 Pc Free Full Version
Don't forget to enter the pause menu on the stage select screen to equip the parts you earn from rescuing Reploids. Speed Shot and Jumper are incredibly useful for tricky platforming sections. Rather than risking your system with untrusted downloads,
Makes X immune to instant-kill spikes and lets him stick to ceilings, though he cannot use boss weapons. How to Play Mega Man X6 on Modern PCs Download Megaman X6 Pc Free Full Version