Change the identity of an IIS application pool for XProtect
To change the identity of an IIS application pool:
Open the Start menu, and enter
inetmgrcto open Internet Information Services (IIS) Manager.On the Connections pane, double-click your server to expand the list menu, then select Application Pools.
Right-click an application pool that starts with VideoOS and select Advanced settings...
Under Process Model, change the Identity with the selected Windows account.
Repeat steps 3-4 for all VideoOS application pools.
Start all VideoOS application pools.