Uninstallation of VIS message

Has anyone else experienced this problem? I tried to remove the VIS from this server to attach it to a new server, but now I keep getting this message when I try to install the VIS again.

"Uninstallation of previous VIS version is incomplete, kindly restart the target machine and try again."

Is there a way to clean this up? I'm unable to back up my server without it. Thanks!

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