Hi trippap,
Thank you for posting in Microsoft Community.
I understand how frustrating it can be when your microphone suddenly vanishes after an update installed. Though it's unclear if this is a typical issue or just a coincidence. I am here to help and let’s explore some possible solutions to get your microphone back up and running:
- Force the device to shut down and restart Press and hold down the power button until your Surface shuts down and restarts and you see the Windows logo screen (about 20 seconds), then release the power button.
- Restart the Windows Audio service.
- Press the Windows key + R to open the Run dialog box.
- Type services.msc and click OK.
- In the Services window, locate Windows Audio and right-click on it.
- Choose Restart.
- Check device manager for hidden driver.
- Open Device Manager
- Click View > Show hidden devices.
- Expand the Sound, video and game controllers.
- Find the Audio driver in the list.
- if you see the audio driver, Right click on it and select Uninstall device.
- Manually update the drivers and firmware for your Surface.
- Go to Download driver and firmware for Surface, choose Surface Pro.
- Then click the link next to Surface Pro 8 then click Download on the next page.
- Choose the .msi file that matches your current OS Build and click Next.
- After downloading, run and install the .msi then Restart.
For other troubleshooting guide, see Fix microphone problems - Microsoft Support.
If none of these steps resolve the issue, kindly give answers to the following questions so we can further isolate your issue and formulate appropriate troubleshooting steps.
- May I know what build version of Windows you are currently running?
- Will you check device manager for any driver error?
I look forward to hearing from you.
Kind regards,
Lavenia