Error while installing Netflow service

Error while installing Netflow service

Please help
 
I've been using netflow for some time now, only to realise that I had installed it on a small partition of my harddrive. I uninstalled it and now am trying to install on the larger partition. It installed well but at the end gives this error " Error while installing Netflow service." When I go to services, this is what I get " <Failed to read Description. Error Code 2> and the service is not running.
 
I had earlier on faced problems uninstalling the application and had to use the cleanup tool but was unable to delete the manageengine folder which said it is open somewhere
 
 
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