This is the #1 error after a F3arwin V4.1.1 download. Because the driver is unsigned, Windows blocks it. Solutions:
A: Deleted immediately. The real F3arwin V4.1.1 is never a single executable – it’s a driver + CLI tool pair. F3arwin V4.1.1 Download
f3arwin --interface spi --bus 0 --chip w25q64 --read --output router_dump.bin
This extracts the entire 8MB flash from a supported SPI chip. This is the #1 error after a F3arwin V4