Microsoft-Windows-BackgroundTransfer-ContentPrefetcher

Event	Title	Channel	Sample	Rule
0	The content prefetcher task has started for app appName.	Operational	N	N
1	The content prefetcher task has completed for app appName.	Operational	N	N
2	Fetch URI uri started.	Operational	N	N
3	Fetch Indirect Content URI uri started.	Operational	N	N
4	Fetch URI uri completed.	Operational	N	N
6	Fetch URI uri Failed with error statusCode: errorString.	Operational	N	N
7	Fetch URI uri Failed with error: errorString.	Operational	N	N
8	Fetch Indirect URI uri responded with Xml data: xmlBlob.	Operational	N	N
9	Processing Indirect Content XML Document failed.	Operational	N	N
10	Fetching count Content URIs.	Operational	N	N
11	Skipping fetch of URI uri because the limit has already been exceeded.	Operational	N	N
12	The content prefetcher task has completed for app appName with error …	Operational	N	N
13	The content prefetcher task has completed for app appName with error …	Operational	N	N
14	The content prefetcher task has completed for app appName with an unspecified …	Operational	N	N
15	The content prefetcher task has completed for app appName with error …	Operational	N	N
16	Fetch URI uri Failed with error: statusCode.	Operational	N	N
17	Fetching count Indirect Content URIs.	Operational	N	N
18	The fetch of URI uri was canceled due to timeout.	Operational	N	N

Event ID 0: The content prefetcher task has started for app appName.

Channel: Operational
Task: PrefetchTaskActivity

Message #

The content prefetcher task has started for app %1

Fields #

Name	Description
`appName` UnicodeString

Event ID 1: The content prefetcher task has completed for app appName.

Channel: Operational
Task: PrefetchTaskActivity

Message #

The content prefetcher task has completed for app %1

Fields #

Name	Description
`appName` UnicodeString

Event ID 2: Fetch URI uri started.

Channel: Operational
Task: URIFetch

Message #

Fetch URI %1 started

Fields #

Name	Description
`uri` UnicodeString

Event ID 3: Fetch Indirect Content URI uri started.

Channel: Operational
Task: URIFetch

Message #

Fetch Indirect Content URI %1 started

Fields #

Name	Description
`uri` UnicodeString

Event ID 4: Fetch URI uri completed.

Channel: Operational
Task: URIFetch

Description

Fetch URI uri completed. Status: httpStatusCode errorString.

Message #

Fetch URI %1 completed. Status: %2 %3

Fields #

Name	Description
`uri` UnicodeString
`httpStatusCode` UInt32
`errorString` UnicodeString

Event ID 6: Fetch URI uri Failed with error statusCode: errorString.

Channel: Operational
Task: URIFetch

Message #

Fetch URI %1 Failed with error %2: %3

Fields #

Name	Description
`uri` UnicodeString
`statusCode` UInt32
`errorString` UnicodeString

Event ID 7: Fetch URI uri Failed with error: errorString.

Channel: Operational
Task: URIFetch

Message #

Fetch URI %1 Failed with error: %2

Fields #

Name	Description
`uri` UnicodeString
`errorString` AnsiString

Event ID 8: Fetch Indirect URI uri responded with Xml data: xmlBlob.

Channel: Operational
Task: IndirectContentURI

Description

Fetch Indirect URI uri responded with Xml data.

Message #

Fetch Indirect URI %1 responded with Xml data:
 %2

Fields #

Name	Description
`uri` UnicodeString
`xmlBlob` AnsiString

Event ID 9: Processing Indirect Content XML Document failed.

Channel: Operational
Task: IndirectContentURI

Message #

Processing Indirect Content XML Document failed. 
Error code: %1 
Error reason: %2
Source text:%3
Error offset:%4

Fields #

Name	Description
`statusCode` UInt32
`errorReason` UnicodeString
`sourceText` UnicodeString
`errorOffset` UInt32

Event ID 10: Fetching count Content URIs.

Channel: Operational
Task: URIFetch

Message #

Fetching %1 Content URIs.

Fields #

Name	Description
`count` UInt32

Event ID 11: Skipping fetch of URI uri because the limit has already been exceeded.

Channel: Operational
Task: URIFetch

Message #

Skipping fetch of URI %1 because the limit has already been exceeded.

Fields #

Name	Description
`uri` UnicodeString

Event ID 12: The content prefetcher task has completed for app appName with error httpStatusCode: errorString.

Channel: Operational
Task: PrefetchTaskActivity

Message #

The content prefetcher task has completed for app %1 with error %2: %3

Fields #

Name	Description
`appName` UnicodeString
`httpStatusCode` UInt32
`errorString` UnicodeString

Event ID 13: The content prefetcher task has completed for app appName with error errorString.

Channel: Operational
Task: PrefetchTaskActivity

Message #

The content prefetcher task has completed for app %1 with error %2

Fields #

Name	Description
`appName` UnicodeString
`errorString` AnsiString

Event ID 14: The content prefetcher task has completed for app appName with an unspecified error.

Channel: Operational
Task: PrefetchTaskActivity

Message #

The content prefetcher task has completed for app %1 with an unspecified error

Fields #

Name	Description
`appName` UnicodeString

Event ID 15: The content prefetcher task has completed for app appName with error errorString.

Channel: Operational
Task: PrefetchTaskActivity

Message #

The content prefetcher task has completed for app %1 with error %2

Fields #

Name	Description
`appName` UnicodeString
`errorString` UInt32

Event ID 16: Fetch URI uri Failed with error: statusCode.

Channel: Operational
Task: URIFetch

Message #

Fetch URI %1 Failed with error: %2

Fields #

Name	Description
`uri` UnicodeString
`statusCode` UInt32

Event ID 17: Fetching count Indirect Content URIs.

Channel: Operational
Task: IndirectContentURI

Message #

Fetching %1 Indirect Content URIs.

Fields #

Name	Description
`count` UInt32

Event ID 18: The fetch of URI uri was canceled due to timeout.

Channel: Operational
Task: URIFetch

Message #

The fetch of URI %1 was canceled due to timeout.

Fields #

Name	Description
`uri` UnicodeString

Provenance

ETW provider GUID 648a0644-7d62-4fd3-8841-440064762f95

Defined in Windows.Networking.BackgroundTransfer.ContentPrefetchTask.dll, which carries the event manifest.

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, 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