Mikrotik-5.20 Ed [portable] Full License Level 6-by Inxan.rar -

Use an official MikroTik license (Level 4, 5, or 6) purchased legitimately, or use the free Level 1 license (limited to 24h/1Mbit). RouterOS v5.20 is also very outdated (released ~2013); current stable is v7.x with new features and security patches.