Let’s clear up a major misconception first. The is primarily a Wi-Fi hotspot . In 99% of use cases, you never need to install a driver manually. Windows 10 can connect to it like any other wireless router:
Check the hotspot’s LCD screen – does it show "No SIM" or "No service"? Also, ensure your cellular data plan is active. The driver only provides the connection; the modem must have a working data session. huawei e5573 drivers windows 10