This knowledge base article guides users through the manual uninstallation process of VembuIntegrationService (VIS) from a Hyper-V host machine. This process is necessary when attempting to add the same host in the BDRShield backup server console results in an error stating "VIS is already running on the host machine.”

The error occurs when VembuIntegrationService (VIS) is already installed on a Hyper-V host machine, and an attempt is made to add the same host in the BDRShield backup server console.

Follow the steps below for the manual uninstallation of VembuIntegrationService (VIS) from a Hyper-V host machine.

Step-1: If the Hyper-V host is not a core OS machine

1. Go to ‘Control Panel → Programs’ and select ‘Uninstall a program’.

2. Select VembuIntegrationService and choose ‘Uninstall’.

Step-2: If the Hyper-V host is Core OS based

1. Open Task Manager using: Ctrl-Shift-Esc.

2. Go to the “File” menu and click on “New task” option.

3. Type cmd and press enter.

4. To open the command prompt with Admin Privilege, and if the logon account doesn’t have administrator privileges, run the command:

`runas /user:administrator cmd`

Note: Provide the administrator password when prompted. This will open a new command prompt with administrator privileges.

5. Execute the following command in the command prompt with administrator privilege:

`wmic product where name="VembuIntegrationService" call uninstall`.