Wi-Fi from a PC without a router!

 If you have a device  with a Windows 10 version, you can activate the Internet distribution directly from your PC.

 Click "Start" - "Settings" - "Network and Internet" — "Mobile Hotspot". The network name and password will already be registered here. If desired, you can change them using the "Edit" button.

 Switch the button to "On" mode (Share your internet connection with other devices).