Audio driver recovery and reinstallation

A selected-output problem needs a routing change, not a reinstall. A service that stopped responding may need a service restart or a normal system restart. A device that reports an error after a package change may need rollback, while a damaged or mismatched package may need exact-model reinstallation. Bluetooth pairing and USB enumeration have their own recovery paths. Write down the symptom before acting so a successful change can be distinguished from an unrelated improvement.

1. Identify whether the failure is routing, service, device status, connection, or package related.
2. Save the current configuration and close active audio work.
3. Use one supported recovery action before choosing a more disruptive one.

A restart can disconnect a meeting, stop a recording, or interrupt an audio editor. Tell other participants, save a local copy, or end the session before restarting. Record custom levels, input choices, and application routes because recovery can return them to defaults. Never interrupt an installer or recovery operation once it has begun, and do not treat a system reset as a routine audio repair when a driver rollback or endpoint selection could answer the symptom.

After recovery, test the output that originally failed, then test the microphone and any external device you rely on. Reopen the affected application and confirm its own input and output choices. A speaker test does not validate capture, Bluetooth call mode, HDMI, or a USB headset. If one component remains absent, record its status and consult the computer or device maker rather than repeating a broad recovery sequence.