My laptop can't connect to a wireless network it can only connect through Ethernet?

Make sure the laptop doesn't have a switch on it that can turn the Wi-Fi on or off. I once had a Dell with a physical switch that turned the Wi-Fi on/off, it was easy to accidentally hit the switch.

Make sure the Wi-Fi adapter is turned on in network properties. I have a different Lenovo and mine has light above the keyboard that tells you if the Wi-Fi adapter is turned on, check to see if yours has something like that.

The main thing to determine is if the Wi-Fi adapter is turned on and can it see any Wi-Fi network. Connecting to the Wi-Fi network is a different exercise. You need to get past step one first.

Will any other devices connect to Wi-Fi? If not then unplug
the power to your modem/router for 20 to 30 seconds and
then plug it back in and wait till it resets. If other devices do
connect I would guess that the Wi-Fi adapter in the laptop is
probably gone. You can purchase a Wi-Fi adapter at Best Buy.

You and to turn on Wi-Fi on your laptop. Google search how to turn Wi-Fi on put name and model of your laptop. Step by step should come up
But also call manufacturer listen to prop and talk to customer service they will tell you how to turn it on. Manufactured number should be on back or bottom of laptop you can also lk up number on net

Check F7 function key (Airplane Mode)

From the manual. https://support.lenovo.com/...s/UM020148

Connecting to a wireless network
Enabling wireless connection
To enable wireless functions, do one of the following:
- Press F7 to disable airplane mode.
- Open the charms and select Settings to open the network
configuration page. Then toggle the airplane mode switch to off.

"May be your Wireless LAN Driver is accidently remove or uninstaled,
Then you chould google it and find Wireless LAN Driver on leneovo official websites.

You must also get Leo Privacy Guard so as to hide your edited images and also there's lot of security features in your cell phone, which could be very useful for you."