Microsoft Sharepoint Workspace cannot coexist with an earlier version of Groove. You have chosen to keep an earlier version ...

Microsoft Sharepoint Workspace cannot coexist with an earlier version of Groove. You have chosen to keep an earlier version of Groove on the user's computer, so you must not install this version of Microsoft Sharepoint Workspace.  On the Set Feature Installation States panel, be sure that Microsoft Sharepoint Workspace is set to Not Available, Hidden, Locked.