Microsoft-Windows-BackgroundTransfer-ContentPrefetcher

18 events across 1 channel

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

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

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: PrefetchTaskActivity

Description

The content prefetcher task has started for app appName.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: PrefetchTaskActivity

Description

The content prefetcher task has completed for app appName.

Message #

The content prefetcher task has completed for app %1

Fields #

Name	Description
`appName` UnicodeString

Event ID 2: Fetch URI uri started.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

Fetch URI uri started.

Message #

Fetch URI %1 started

Fields #

Name	Description
`uri` UnicodeString

Event ID 3: Fetch Indirect Content URI uri started.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

Fetch Indirect Content URI uri started.

Message #

Fetch Indirect Content URI %1 started

Fields #

Name	Description
`uri` UnicodeString

Event ID 4: Fetch URI uri completed.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

Fetch URI uri Failed with error statusCode: errorString.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

Fetch URI uri Failed with error: errorString.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: IndirectContentURI

Description

Processing Indirect Content XML Document failed.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

Fetching count Content URIs.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

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

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: PrefetchTaskActivity

Description

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

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: PrefetchTaskActivity

Description

The content prefetcher task has completed for app appName with error errorString.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: PrefetchTaskActivity

Description

The content prefetcher task has completed for app appName with an unspecified error.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: PrefetchTaskActivity

Description

The content prefetcher task has completed for app appName with error errorString.

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.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

Fetch URI uri Failed with error: statusCode.

Message #

Fetch URI %1 Failed with error: %2

Fields #

Name	Description
`uri` UnicodeString
`statusCode` UInt32

Event ID 17: Fetching count Indirect Content URIs.

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: IndirectContentURI

Description

Fetching count Indirect Content URIs.

Message #

Fetching %1 Indirect Content URIs.

Fields #

Name	Description
`count` UInt32

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

Provider: Microsoft-Windows-BackgroundTransfer-ContentPrefetcher
Channel: Operational
Task: URIFetch

Description

The fetch of URI uri was canceled due to timeout.

Message #

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

Fields #

Name	Description
`uri` UnicodeString

Provenance

Where this provider's schema came from, and which Windows build it was observed on. Windows can change a provider's event schema between builds, so use this to judge whether it matches the build you collect from.

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

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

Observed on:

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02

`j` / `k`	Scroll down / up
`d` / `u`	Half-page down / up
`gg` / `G`	Top / bottom
`h` / `l`	History back / forward
`f`	Follow link (`Shift` = new tab)
`/`	Focus search
`?`	Toggle this help
`↑` / `↓`	Navigate search results
`Enter`	Open highlighted result
`Esc`	Close results / dialog

`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)

Microsoft-Windows-BackgroundTransfer-ContentPrefetcher

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

Description

Message #

Fields #

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

Description

Message #

Fields #

Event ID 2: Fetch URI uri started.

Description

Message #

Fields #

Event ID 3: Fetch Indirect Content URI uri started.

Description

Message #

Fields #

Event ID 4: Fetch URI uri completed.

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

Event ID 9: Processing Indirect Content XML Document failed.

Description

Message #

Fields #

Event ID 10: Fetching count Content URIs.

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

Event ID 17: Fetching count Indirect Content URIs.

Description

Message #

Fields #

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

Description

Message #

Fields #

Provenance

Downloads