If Bluetooth driver is missing or gets removed after a Windows Update, add the legacy driver from the Device Manager, install the correct driver from your manufacturer, etc.
If Audio inputs and outputs option is missing from Device Manager in Windows 11/10, follow these instructions i.e. reinstall ...
Your network card is likely fine if the Wi-Fi icon is missing. Use these troubleshooting steps to quickly bring it back.
I have a strange issue with an old Lenovo desktop PC after I installed Windows 10 on the weekend: In the notification area, the audio / speaker symbol has a red cross / sign indicating an issue.
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