Make sure you are logged on with a user account that has administrator rights, best use the account which was used to install the connector software originally. Then please try reinstalling the connector software from
http://yourservername:55000, then try uninstalling again. If it still fails stop the Windows Home Server Connector Service (Start, Run, type services.msc and hit enter, find and stop service), then try uninstalling
again. As a last resort you could restore your system to a point in time before you originally installed the connector software using system restore. If the restore point is no longer available try going back as far as possible. Please note you will need
to run windows update and reinstall any software you installed after the restore point you have chosen.