Micro-Cap 12 – Full Version, FREE now as of 07/04/2019 (+$4000 value)
Here is a great FREE electronic circuit simulation that was sold under a paid commerical license until last year (2019).
Micro-Cap was initially released in September 1982, over 37 years ago.
Final release (12.0.2.3) was on November 18, 2019.

Platform: Windows 2K, XP, Vista, 7, 8, 8.1, 10
License: Freeware
Below are direct download link.
If you have automatic download setup on your device, check your download folders.
Micro-Cap 12 – Circuit Simulation -FREE