Sad to read that! The same thing happend to me around the 23rd October and 24h later my > 1BTC have gone!
You have installed a trojan on your system, I got exactly the same driver message after running the bat file.

They scan you system and look for everything related to crypto. Also if you have a NAS or similiar would be scanned and files be downloaded by them.
Please take care that you have not made a digital copy of your seed! If yes move all your coins as fast as you can to a fresh gererated offline wallet!
Dont't use ur PC anymore before you have made a clean install of the OS and change all your passwords..first email and than from all saved accounts on your browser.
It tooks me 3 days to restore everything from backups, make a clean setup for my Ledger Nano S and so on...
Good luck to you!