Cisco Packet Tracer Download 8.1.1 !!better!!

(8.2.2 or 8.3.x) from NetAcad instead. It's backward-compatible and more reliable.

Always use the official Cisco NetAcad portal. Never run random .exe files from forum posts. If you cannot find 8.1.1 officially, consider moving to version 8.2.2 (still lightweight) or ask your educational institution for a mirror. cisco packet tracer download 8.1.1