Xiaomi Mi Unlock "Not connected to the phone" I am going insane here and I need help now.

I am trying to unlock my Xiaomi Mi Note 4's bootloader since almost 2 weeks, but I am stuck in this problem where the Mi Unlock tool can't recognize that my phone is connected.

Yes, I already have applied for and received permission from Xiaomi to unlock my device. Yes, I have waited for more than 4 days already.
The problem here is that the Mi Unlock tool simply can't see my device in bootloader mode. And it is connected, as I can see it in the Device Manager:



Mi Unlock simply can't see it:



If I click on the gear icon on the top, it says that the drivers aren't installed:



But if I click to check, it says they are installed:



Fastboot also sees the device:



What's going on here? I really need help.
I am on Windows 10 Professional 64-bits, all latest updates installed.

All help appreciated.
I had the same problem, figured it out eventually. 

Just extract the Mi unlock tool files into a new folder directly in the C Drive. 

Hope this helps.