Without the actual file hash or digital signature, should be treated as potentially malicious until proven otherwise. No reputable software vendor distributes installers with a space and dash in the main filename like this.
Older FTDI chips or specific hardware (like the Arduino Duemilanove) may perform more reliably with this specific driver set. Cdm20830 -setup.exe Download
Plug your USB device back in. Open (Right-click Start Button > Device Manager). Without the actual file hash or digital signature,
Causes the USB device to appear as a standard COM port, allowing software to access it like a legacy serial port. Cdm20830 -setup.exe Download