五vg二十日个人https://support.microbit.org/support/solutions/articles/19000105428-webusb-troubleshooting） Windows •WebUSB is only supported in Windows 8.1 or above. •If you have upgraded from a previous version eg Windows 7 > Windows 10 you may experience a confict with an old driver. If the Mbed Serial driver has been manually installed (by downloading and executing the .exe) it might interfere with the Windows 8/10 automatic installation of the WebUSB driver. To check if you have this driver already: 1. Open Windows Device Manager and see if the micro:bit USB device is shown. If it is... 2.find the mbed Composite Device entry, right click on it and select Uninstall device. 3.A new window will open, mark the Delete the driver software for this device box and click Uninstall. 4.Unplug and replug your micro:bit and it should appear under USB device
五vg二十日个人https://support.microbit.org/support/solutions/articles/19000105428-webusb-troubleshooting） Windows •WebUSB is only supported in Windows 8.1 or ndows 7 > Windows 10 you may experience a confict with an old driver. If the Mbed Serial driver has been manually installed (by downloading and executing the .exe) it might interfere with the Windows 8/10 automatiu have this driver already: 1. Open Windows Device Manager and see if the micro:bit USB device is shown. If it is... 2.find the mbed Composite Device entry, right click on it and select Uninstall device. 3.A new window will open, mark the Delete the driver software for this device box and click Uninstall. 4.Unplug and replug your micro:bit and it should appear under USB device
