Event ID - 1016

Event Id1016
SourceMSExchangeDS
DescriptionMissing configuration parameter (DSA Database file). The Microsoft Exchange Server database (EDB) may be corrupted. Try to reinstall the software.
Event InformationAccording to Microsoft:
CAUSE:
This behavior can occur if a registry key is missing or has been deleted from the following registry setting:
HKeyLocalMachine\System\CurrentControlSet\Services\MSExchangeDS\Parameters
RESOLUTION:
To resolve this issue, verify that the service account has full access to all of the registry keys listed in the "Cause" section. If one of these keys is missing or has been deleted, you must re-create it.
Reference LinksXADM: Event ID 1016 and 1002 Occur When Directory Service Fails to Start

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