A user recently moved computers and needed their Groove workspace moving as well. Upon the copying of the .grv file and setting up the workspace for download . For some reason only the Calendar Downloaded and the Files or Discussion tabs were missing, After deleting the workspace and redownloading , the following error was displayed : Error Installing Groove Workspace : The Parameter is incorrect To fix this issue I Deleted my Groove account from the computer by

1. Select Options – Preferences, and select the Account tab.
2. Click Delete Account from this Computer.

( Made sure I removed my account from any other Computers ) And got another user in the workspace to reinvite to the Workspace.