Fix: Wi-Fi Missing After an Update
A calm walkthrough for the worst-time-possible Wi-Fi outage, with a recovery path that does not need an internet connection.
Why Updates Sometimes Cause This
Operating system updates occasionally include a newer driver for the Wi-Fi adapter. If that newer driver is not yet a perfect fit for your specific card, the result is no Wi-Fi until you address it.
It is rarely a hardware issue — the card is fine. The fix is usually to roll back to the previous driver, wait for a corrected one, or fetch a maker-built driver and install it offline.
If the adapter shows up in the system but is flagged as offline rather than missing, the recovery path is slightly different — our companion overview on what to do when a network device is offline walks through the matching steps.
Roll Back the Driver First
Open Device Manager, find the Wi-Fi adapter, open Properties, and switch to the Driver tab. If "Roll Back Driver" is available, that returns the previous version with a single click. A reboot finishes the swap and Wi-Fi typically returns.
If the rollback option is not available, the previous driver is no longer cached. In that case the next step is fetching the maker-built driver on another device and copying it across.
When You Need a Driver and Have No Wi-Fi
Use a phone, tablet, or another computer to download the Wi-Fi driver from your laptop manufacturer's page. Save it to a Usb drive and copy it to the affected machine. Run the installer, reboot, and Wi-Fi should be back.
For future protection, keep a copy of your current Wi-Fi driver saved to a Usb drive — the next time an update misbehaves, the recovery path is already prepared.
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