Error “Some Controls are not valid” while uninstalling Exchange 2010 Management Tools

Error “Some Controls are not valid” while uninstalling Exchange 2010 Management Tools

Recently I faced an issue with uninstalling the Exchange 2010 Management Tool from my Windows 7 Workstation. This error occurred when I was trying to uninstall the Exchange Management Console:
“Some Controls are not valid- Please specify an existing server role(s) to uninstall”

Actually i was not un-checking the “Management Tools” option. I spent lot of time figuring out this..hence thought to share here which may be helpful for others…I hope this saves some time of them.