Wifi hotspot from laptop (windows)

Open cmd in administrator:

netsh wlan show drivers

Find row “Hosted network supported: yes

Next:

netsh wlan set hostednetwork mode=allow ssid=<yoursid> key=<your_key>

netsh wlan start hostednetwork

Open Network and sharing center, open Internet connection properties -> Sharing check [v] Allow other network to connect … and select adapter.  OK

Done!