Remove deleted workspace names from "Switch Workspace" Menu in Eclipse based IDE

Sometime the deleted workspace names won't be removed from "switch workspace" list which may cause confusion to select the correct workspace.Here is the procedure to remove the entries from the list

Go to Eclipse/RAD installation directory (Eg:C:\Program Files\IBM\SDP) and find org.eclipse.ui.ide.prefs file under configuration\.settings.
Open the file org.eclipse.ui.ide.prefs in any favorite text editor and remove the unwanted values associated with key "RECENT_WORKSPACES".

Take care \n will be associated with every workspace name since this is maintained like bundle file.