When it fails to connect, install the USB driver under the path of MiniTools. When it appears that the hash value of the file is not in the specified directory file, then it is ok to turn off the mandatory signature. Some friends will not find it for a while. How to turn off, use CMD to input:
bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
Restart, it's done in one second.