RECentral shows "Device occupied" error message, how to fix it?

RECentral 4 shows “Device Occupied” error message

STEP 1:

If you have already updated your system to Windows 10 [1803]

This error is resulted by the new update that controls the way of applications connecting your webcams and video capture devices.

Please refer to following steps to resolve the situation:

In Windows Search type “Privacy Settings” then click “Enter”

1. At Privacy Settings/ App Permissions/ Camera find the toggle and make sure to set it on

“Allow apps to access your camera”

2. At Privacy Settings/ App Permissions/ Microphone find the toggle and make sure to set it on

“Allow apps to access your microphone”

STEP 2:

Make sure that your UAC (USB Audio Class) device (for example: GC510, GC513, GC570, BU110) is enabled* at Windows Volume panel under Recording devices.

*Note: if you plug microphone to your system that will be the default device, but UAC device still has to be enabled.

STEP 3:

If your device is USB interface (for example: GC510, GC513, BU110) try to remove it from the connected USB port then plug it back.

STEP 4:

Reinstall driver for the UAC device: remove the UAC device manually from Device Manager by right click on its name then select “Uninstall device”,

then at Device Manager/Action panel select “Scan for hardware changes”

STEP 5:

Go into Windows Task Manager and at Services “Stop” RECentral service

then restart it by clicking “Start” it.

STEP 6:

If you set graphic card codec in RECentral 4 settings, make sure to update your standalone graphic card driver to its latest version.