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Event ID 7045: A service was installed in the system

Windows Event ID Lookup: What Windows event IDs mean: 4625, 4624, 4740, 6008, 41, 7045, 1102 and 3,000 more, with Windows' own message text, the fields and what to check.

Look up a Windows event ID from Event Viewer, a SIEM alert or a log export: what it means, the fields it records, and what to check. Many IDs are used by more than one source (event 41 is both a Kernel-Power crash and a boot error), so every definition is shown, the one people usually mean first. The message text is Windows' own, read from the event providers of Windows 10.0.26200.0, 2026-10-28; the notes are ours, based on Microsoft's security auditing reference.

Try: 4625, 4624, 4740, 6008, 41, 1074, 7045, 1102, 4104, 1149

A service was installed in the system.

Event 7045
Service Control Manager
System log
Information

A new service was installed.

What to check: Check Service File Name and Account; unfamiliar services, especially running from temp or user folders, are a common persistence and lateral-movement technique (PsExec creates one).

Related: 4697, 7040

Message and fields (as Event Viewer shows them) 
A service was installed in the system.

Service Name:  …
Service File Name:  …
Service Type:  …
Service Start Type:  …
Service Account:  …