Microsoft-Windows-Defrag-Core

Event	Title	Channel	Sample	Rule
1	TierOptimizationStart	Debug	N	N
2	TierOptimizationStop	Debug	N	N
3	TierOptimizationStart3	Debug	N	N
4	TierOptimizationStop4	Debug	N	N
5	TierOptimizationStart5	Debug	N	N
6	TierOptimizationStop6	Debug	N	N
7	TierOptimizationStart7	Debug	N	N
8	TierOptimizationStop8	Debug	N	N
9	TierOptimizationStart9	Debug	N	N
10	TierOptimizationStop10	Debug	N	N
11	TierOptimizationStart11	Debug	N	N
12	TierOptimizationStop12	Debug	N	N

Event ID 1: TierOptimizationStart

Channel: Debug
Task: TierOptimization
Opcode: Start

Event ID 2: TierOptimizationStop

Channel: Debug
Task: TierOptimization
Opcode: Stop

Event ID 3: TierOptimizationStart3

Channel: Debug
Task: TierOptimization
Opcode: Start

Event ID 4: TierOptimizationStop4

Channel: Debug
Task: TierOptimization
Opcode: Stop

Event ID 5: TierOptimizationStart5

Channel: Debug
Task: TierOptimization
Opcode: Start

Event ID 6: TierOptimizationStop6

Channel: Debug
Task: TierOptimization
Opcode: Stop

Event ID 7: TierOptimizationStart7

Channel: Debug
Task: TierOptimization
Opcode: Start

Event ID 8: TierOptimizationStop8

Channel: Debug
Task: TierOptimization
Opcode: Stop

Event ID 9: TierOptimizationStart9

Channel: Debug
Task: TierOptimization
Opcode: Start

Event ID 10: TierOptimizationStop10

Channel: Debug
Task: TierOptimization
Opcode: Stop

Event ID 11: TierOptimizationStart11

Channel: Debug
Task: TierOptimization
Opcode: Start

Event ID 12: TierOptimizationStop12

Channel: Debug
Task: TierOptimization
Opcode: Stop

Provenance

ETW provider GUID e3257c8c-c7cb-444f-9da0-5d92a2625289

Defined in defragres.dll, which carries the event manifest.

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.4893, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02 — Manifest XML pack, 2.0 MB