If the Wi-Fi adapter does not start after restart, use this order of checks:
- Check whether the adapter is disabled
- Open Device Manager.
- Expand Network adapters.
- Right-click the wireless adapter.
- If Enable device appears, select it.
- Check for a driver problem code
- In Device Manager, right-click the wireless adapter and select Properties.
- Check whether a problem number or device error is shown. That indicates why the driver did not load.
- Verify the installed driver is current
- Run Windows Update.
- In Device Manager > wireless adapter Properties > Driver tab, compare the Driver Version and Driver Date with the latest driver from the PC manufacturer.
- Uninstall and reinstall the network adapter driver
- This can remove the current driver, so keep a backup driver available first, especially if the PC cannot get online afterward.
- Open Device Manager.
- Expand Network adapters.
- Right-click the wireless adapter and select Uninstall device.
- Select Attempt to remove the driver for this device if shown, then select Uninstall.
- Restart the PC.
- Windows will try to reinstall the network adapter driver automatically after restart.
- If the adapter is missing from Device Manager
- Windows is not detecting it.
- Manually install the wireless driver from the device manufacturer.
- If the issue keeps happening after restart
- Record when it happens before removing the driver or resetting anything. Advanced troubleshooting guidance notes that uninstalling the adapter or driver, resetting the network stack, or restarting can remove evidence and temporarily change behavior.