Sometimes it's just a matter of turning off all Wireless, or even all networking, and then reactivating it again. With Windows, the equivalent is to disable the network device, and then re-enable it. In Windows, you may have to disable networking all together and then reactivate it.
OR try reinstalling the network driver for your laptop.
If this doesn’t work, go to Control Panel>Network and Sharing Center. There, check if the Wireless network card shows as disabled… if it is disabled, right-click on it and click Enable. Click yes on the UAC Window if prompted. Wait for confirmation that the card is enabled. You should see the Wireless icon on the Taskbar.
Also, check the PC Settings ( Windows 10 ) and see if wifi shows up.
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