We're in the process of migrating from Exchange 2010 to Exchange 2016. Our Exchange 2016 install on a new virtual server (Server 2016) failed a couple of times, and the VM has started bluescreening, so we're looking to start fresh.
We're trying to uninstall Exchange 2016 before removing the VM and starting over, but are having some issues uninstalling due to Exchange 2016 still having it's default database. We can't remove the database due to existing arbitration mailboxes.
The documentation states these should be moved to another database, or if it's the last server in the organisation (which it isn't as we have our original Exchange 2010 server which hasn't been migrated) to run -DisableLastArbitrationMailboxAllowed.
Is it safe, or even possible, to move the 2016 arbitration mailboxes to the Exchange 2010 database so we can delete the Exchange 2016 database and uninstall? Or is there another process we should be following? Nothing has been done with this Exchange 2016 server other than running the installation and having it fail multiple times on step 14/15.