Windows usually blocks unsigned drivers. You must disable this check to install the VCOM driver successfully. Driver Easy Update & Security Advanced startup Restart now Troubleshoot Advanced options Startup Settings After the reboot, press on your keyboard to select "Disable driver signature enforcement" 2. Manual Driver Installation
By following this guide, you should be able to install the Mediatek Preloader USB VCOM driver and perform low-level operations on your Mediatek-based device. how to install mtk driver mediatek preloader usb vcom
Click , select Install the hardware that I manually select from a list (Advanced) , and click Next again. Windows usually blocks unsigned drivers