Win10/22H2/O365 2302. I have about a dozen PST files that I do not want Windows Desktop Search to index, to keep the index EDB a reasonable size. Historically, I thought WDS did not index PSTs unless they were open in Outlook, but I've noticed recently that WDS is indexing everything, resulting in a very large index, despite (1) the PSTs are not open in Outlook and (2) the folder where the PSTs are stored is not included in indexed locations (and is specifically excluded from indexing under the folder properties).
Is there any way to systematically exclude these PSTs from the index? If I delete them under the registry key HKEY_USERS{SID}\SOFTWARE\Microsoft\Office\16.0\Outlook\Search\Catalog, they get re-populated automatically.
I've also tried playing around with the Powershell interface to CrawlScopeManager and adding rules to exclude these PSTs, but it has no effect.
One possible cause is that these PSTs are associated with Outlook profiles other than the default one that is normally open. Does anyone know if WDS will automatically index PSTs that are only listed under non-default/non-open profiles? If so, is there any way to stop this from happening?
