https://blog.it-kb.ru/2023/05/01/error-32768-0x800423f4-when-backing-up-sharepoint-server-2019-vm-to-veeam-backup-replication-v12-eventid-8194-osearch16-vss-writer-ivsswritercallback-interface-0x80070005-access-is-denied/
Ошибка 32768 (0x800423F4) при резервном копировании ВМ с SharePoint Server 2019 в Veeam Backup & Replication v12 : EventID 8194 - OSearch16 VSS Writer IVssWriterCallback interface 0x80070005, Access is denied