I was at a client site doing migrations using Quest Migration Manager (QMM). After the EMWProf update, users started complaining that they can’t move any mail items from their mailbox to PST and they were getting the following error message:
The issue was related to a GPO that prevents users from moving/adding more items to the PST file. Here is the registry configuration info:
If you configure the PSTDisableGrow value to 1, it will prevent Outlook from creating new items in a PST file.