You didn’t state which model you have, but regardless, I am not aware of any Teclast stock firmware that is Windows only. Were you running a custom ROM (like Mirek)?
model is a5c6, the only single boot Windows model
can you point me to the right direction for a flash able stock bios
it was perfect except it won’t boot sometimes. Now it rarely boots with the dual boot bios.
it is just a Windows 10 I get from Microsoft websute