If you can open Foxflash/New KT200 software normally, but cannot select driver, language, etc, just follow the method in this post to solve the problem.
The solution offered by eobdtool.co.uk:
Both Foxflash ECU programmer and New KT200 ECU Chip Tuning Tool must be connected and powered, device driver must be installed correctly (check windows device manager), Windows time auto sync must be off, Foxflash manager app/KTsuit manager must be opened and activated when using Foxflash software/KTsuit software.
How to run foxflash/ New KT200 software?
1.Shutdown date and time automatically syncs
2.Shutdown defender
3.Shutdown antivirus system
4.Run foxflash manger click active button
5.Keep Foxflash Manager/KTsuit Manager running
6.Run Foxflash/KTsuit software