Malware Warning

Having decided to opt for a 4G internet connection, I had to make the acquisition of two of these keys to pick up the Wi-Fi signal from the 4G router. First important point, these keys are not compatible with the 5GHz signal but néamoins work very well with the 2.4GHz signal. Mission accomplished, but talk about what angers:
First the embalage is stamped "Windows 8" Yet in the supplied CD, there is no Windows 8 drivers, strange for this type of device. Forced to download another extension to copy them, it pays to be vigilant on this point. Obviously this material is not plug-and-play, and installing Drivers proves particularly rough because Avast detects a virus. It is therefore obliged to disable antivirus, and then remove the malware installed with an anti-malware.
Another black spot, the start of my two PC is parasitized by the presence of these keys, although the USB boot function is disabled. My PC often require a reset to restart correctment.