WIO Terminal blank screen

I’m using 32-bit Windows 7. I downloaded and installed the latest version of Arduino and did not install any additional libraries (only Wio Terminal 1.7.9 Lib).
I also downloaded and installed the Windows driver from here.

Now when uploading code with Arduino on Wio, the screen turns black and Wio enters the bootloader mode. where is the problem from ?
I removed the Arduino completely several times but the problem was not solved.

My problem is similar to @mizapata
Has anyone tested on Windows 7?

PS: The interesting thing is that after a failed upload and after restarting, wio automatically enters the bootloader indefinitely!
The problem is solved only when the firmware is re-installed on the device.