Thanks for reaching out to Microsoft Q&A Forum. I understand that your Wi‑Fi settings are not appearing and Windows Update is reporting missing security updates along with a download error.
Please make sure you already tried the Q&A Assist steps. In addition, I would like to narrow this down a bit:
- Are you currently using Windows 10 or Windows 11?
- Does the Wi‑Fi option disappear completely, or does it show but cannot be turned on?
In the meantime, you can try these steps:
1, Restart the WLAN AutoConfig service
- Press Windows key + R, type
services.msc, and press Enter - Locate WLAN AutoConfig
- Right‑click it, choose Restart, and make sure Startup type is set to Automatic
2, Reset Windows Update components
- Press Windows key + X and choose Windows Terminal (Admin)
- Run the following commands one by one:
-
net stop wuauserv -
net stop bits -
net start wuauserv -
net start bits
-
- Restart the device after completing the commands
3, Check for hidden network devices
- Open Device Manager
- Click View, then select Show hidden devices
- Expand Network adapters and check if any wireless adapter appears disabled
4, Temporarily disable third‑party security software
- If a third‑party antivirus or firewall is installed, temporarily disable it
- Restart the device and check if Wi‑Fi settings appear
5, Run System File Checker
- Open Windows Terminal (Admin)
- Run:
sfc /scannow - Restart the device once the scan completes
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