To unshare an iFolder, you must remove a user as a member of an iFolder workgroup. The iFolder on the user's workstation becomes a normal folder. A copy of the data remains on the former member's workstation, but the files are no longer synchronized with the workgroup.
In a file manager or on the desktop, locate the iFolder that you want to stop sharing with one or more current members.
Right-click the iFolder, then click iFolder > Properties.
Click Advanced to manage the iFolder workgroup membership.
From the Share With list, select one or more usernames.
Click Remove > Apply.
Click OK > OK to exit iFolder Properties.