OS Update via USB Downloader(64bit only)
Please refer to the Step 1-2 and use 64bit driver DONWLOAD instead.
After this installed, the PC fails to connect for the first time only but succeeds from 2nd connection
- In Windows 8 (8.1) or 10 64-bit you are unable to install unsigned drivers because the system enables driver signature enforcement by default.
Select Troubleshoot
Advanced Options
Select Startup Options
Restart
Press 7 or F7 to choose Disable driver signature enforcement.
Note:Temporarily, the setting will return to its original state after restarting.