Since the Spring Creators Update (version 1803), Windows 10 has new data protection features that also affect audio devices. Depending on the settings before the update, the feature seems to behave differently, and apparently the default setting is also different from computer to computer.
Under "Settings / Privacy / Microphone" there is now a switch that globally allows apps to access the computer's microphones:
If "Off" is shown here, it should be enough to switch to "On" and then restart SwyxIt!
Important: If "On" is set here after the update, it is possible that the access is still blocked internally. On some computers such an inconsistant state seems to occur after the update. In such cases the procedure is as follows:
- SwyxIt! exit
- Select "Settings / Privacy / Microphone".
- Change access to "Off", confirm the dialog and exit.
- Select "Settings / Privacy / Microphone" again.
- Change access to "On", confirm and exit the dialog.
- Start SwyxIt! again.
Now the microphone should work. If it still doesn't work, it may also be necessary to restart the computer once after each change of the setting.