If this is also your question, you are in the right place.
Here is the latest LG USB Drivers straight from LG website.
You can also visit the LG official support page for LG ENVOY2 UN160 here to download the USB Drivers. Click the Software Update Tab and then click download to save the drivers package onto your computer.
File Name: LGUnitedMobileDriver_S50MAN310AP22_ML_WHQL_Ver_3.10.1.exe
Direct Download Link: