Apply Exchange 2013 CU with error “Couldn’t resolve the user or group “/Microsoft Exchange Security Groups/Discovery Management.” “

When apply exchange 2013 cumulative update ,we may meet following error

Couldn’t resolve the user or group “/Microsoft Exchange Security Groups/Discovery Management.” If the user or group is a foreign forest principal, you must have either a two-way trust or an outgoing trust.”.

The error can be bypassed by disable discovery search mailbox

Get-Mailbox -Filter {RecipientTypeDetails -eq “DiscoveryMailbox”} | Disable-Mailbox