If you have the problem ‘Windows encountered a problem installing the drivers for your device’ when installing KT200 software, just disable driver signature enforcement to solve this error quickly by the following guide.
Go to Taskbar settings>> Home
Enter Windows settings interface
Click Update & Security>> Recovery>> Advanced startup>> Restart now
When restarting the PC, choose Troubleshoot>> Advanced options>> Startup Settings>> Restart
Press F7 to disable driver signature enforcement
Then install KT200 Driver again
- Go to computer management>> Device Manager>> other devices>> DFBTech device>> Update driver>> Browse my computer for driver software
Search for driver in this location C:/Users/Administrator/Desktop /KTM200-22.804/DFBTech_Driver folder
Choose ‘Install this driver software anyway’
Now windows has successfully updated your drivers.
And the USB DFBTech Driver also appears under Universal Serial Bus controllers.