Keep in mind: VOICEMEETER does not need to be removed from your computer in case of a problem. VOICEMEETER is a usual Windows application, endowed with an audio device driver. If you don’t use it, it will not affect your system nor causes problems.
There is also NO REASON to reset the Windows installation or create a restoration point. Basically, all is a question of the audio configuration in the Windows Control Panel / Sound Settings.
VOICEMEETER is installed on your system disk:
C:\Program Files (x86)\VB\Voicemeeter
Its virtual I/Os are installed in the system directory like any other audio driver.
Attention! After the deinstallation, you need to REBOOT Windows! Otherwise, a new VOICEMEETER installation will not work.
If the VOICEMEETER Setup Program does not allow the installation, the virtual audio device (or parts) are still installed or not completely de-installed.
In this case, you need to de-install the VOICEMEETER Virtual Audio Driver manually in the Windows Device Manager:
(1) Open the system / device manager
(2) Find any reference to the VOICEMEETER Audio Device and right click on it to de-install it.
(3) Check the Sound Video Game Controller section first, then the Audio Inputs and Outputs section.
(4) Reboot after each operation!
If the VOICEMEETER Setup program fails to complete its process (installation should take less than 3 minutes), you can go to the existing VOICEMEETER directory (C:Program Files (x86) VB Voicemeeter) and try to install or remove the VOICEMEETER virtual audio device using the VBCABLE_Setup programs – remember to REBOOT after each operation.
If nothing works and you still can’t install a new VOICEMEETER version, consider doing a system roll back (sytem restore) … from a recent point (some days ago).