Disable Windows 10 Airplane Mode

Steps:

1. Select the Windows button on the bottom left

2. Type in "Settings" and Select "Settings"

3. Select "Network & Internet"

4. Select "Airplane Mode"

5. Select the cylinder under "Bluetooth" to turn it on/off

Manual Keys on Dell Laptop

On your laptop, you might see a button on the top row with an airplane symbol. Pressing this button will turn on/off airplane mode

Mike Berman's Random Thoughts and Opinions: Fix for Windows 10 Issue - Stuck in Airplane Mode Without Wireless

You might also see a physical switch on the sides/under your laptop that turns on/off the wifi. This switch has a symbol that looks like an antenna.