The "huawei e5573s-320 driver for windows 10" does exist, but Microsoft and Huawei never streamlined it perfectly. Armed with this guide, you now have every possible solution—from official installation to expert-level workarounds.
The Huawei NDIS driver works on both. However, if you have an ARM-based Windows 10 (Surface Pro X, etc.), generic NDIS will fail. In that case, use Wi-Fi only. huawei e5573s-320 driver for windows 10
The yellow triangle disappears. A new network adapter named "Remote NDIS based Internet Sharing Device" appears under Network adapters. The "huawei e5573s-320 driver for windows 10" does