I lost my tiny little USB unifying receiver so I ended up buying a new one on Amazon. It detected fine by my laptop (on Windows 10), but for the life of me the Logitech Unifying Software failed to recognize it. I tried everything and went deep into Google to try and uncover the problems. Everything from reinstalling the USB files, to disabling certain software – I was ready to reinstall Windows and start from scratch from avoiding to have to send it back knowing full well another adapter likely would run into the same problems. My assumption was that this was not an actual Logitech product (though it claimed it was), as it came with a lot of Chinese manuals and no branding besides a small logo on the side. So I figured there was some sort of conflict between the versions that was not detecting the third-party version because my machine was used to detecting the actual Logitech one.
The solution is as follows
Step 1 – Unplug all usb devices besides any keyboards or mouse that you need to keep operating.
Step 2 – Download and install USB Oblivion
Step 3 – Run USB Oblivion for your machine (be sure to keep track if it’s 32 bit or 64 bit and run the proper file).
Step 4 – Reset your computer, and insert your Unifying Adapter and re-run Logitech Unifying Software