input device not found, microphone window 11, case Moderator note: PII removed

Please note that this is German Q&A Forum, any threads should be posted in German. However, I will still provide an answer on English based on your initial response.  

Welcome Timothy McManus,

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I understand how frustrating it can be when on your Windows 11 device the microphone shows “no input device found,” and the system is not detecting any audio input. 

To make sure I guide you to the right fix quickly, please confirm the following:  

• Is this an internal (built‑in) microphone or an external microphone or headset connected to the device? 
• Did this issue start after a recent Windows update or driver update? 

Alongside the previous suggestions, you might also want to consider these options:  

Option 1: Check Device Manager.  

• Open Device Manager from the Start menu > click View and select Show hidden devices 
• Expand Audio inputs and outputs and Sound, video and game controllers. 
• Check if any microphone or audio device appears as Disabled or Unknown. 

Option 2: Check microphone privacy settings.  

• Open Settings > Privacy & security > Microphone. 
• Make sure Microphone access and Let desktop apps access your microphone are turned on. 

Option 3: Restart Windows audio services.  

• Press Windows key + R > type services.msc > press Enter. 
• Restart Windows Audio and Windows Audio Endpoint Builder. 

Option 4: Install the latest audio driver from the device manufacturer.  

• Visit the official support website of your PC or motherboard manufacturer. 
• Download and install the latest Windows 11 audio driver for your exact model. 

I really hope that the information I gave above was helpful to you. Please feel free to reply below and let me know if you have further concern on this matter.  

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Hallo, vielen Dank, dass Sie Microsoft Q&A kontaktiert haben.

Darf ich bitte wissen, ob du schon versucht hast, die Audiotreiber im Geräte-Manager neu zu installieren, um zu sehen, ob das hilft?

Öffnen Sie den Geräte-Manager.

Erweitern Sie den Pfeil neben Sound, Video und Spielcontroller.

Rechtsklicke auf den Standard-Audiotreiber, wie zum Beispiel Realtek (R) – wähle Gerät deinstallieren > hake das Kontrollkästchen für 'Versuche, die Treibersoftware für dieses Gerät zu entfernen' an und klicke auf Deinstallieren.

Nach der Deinstallation starte du deinen Computer neu und teste den Mikrofoneingang.

Wenn du immer noch Probleme hast,

Geben Sie msinfo in die Suchleiste in der Taskleiste ein und klicken Sie auf Enter.

Posten Sie einen Screenshot des resultierenden Dialogfensters.