Skip go content

CompatTelRunner.exe

Windows ProcessMicrosoft Corporation

Catalog search terms compattelrunner, compatibility telemetry, microsoft compatibility telemetry

WindowsSystem Component

Compatibility Telemetry runner. Scheduled tasks dey start am to collect compatibility data wey Microsoft dey use for upgrades and problem reports.

Wetin you need know

Dis na Compatibility Telemetry, scheduled Microsoft task. E no be Defender and e no be browser.

CompatTelRunner.exe dey run Microsoft Compatibility Telemetry. High disk for some time after upgrade dey common. To disable di scheduled task na di supported control, no be to delete System32.

E safe?
Check the running file path, signature, and publisher. Name alone no fit confirm say e safe.
High disk?
Compat scan fit do dat one
I fit disable am?
Through di task, no be by deleting di file
Feex tok say
If CompatTelRunner na di disk hog after feature update, I go allow di task finish once. I no go rename di exe. Na so servicing repairs dey start to fail.

Wetin be CompatTelRunner.exe?

CompatTelRunner.exe na di host for Microsoft Compatibility Telemetry. Task Scheduler dey launch am from Microsoft / Windows / Application Experience.

Wetin e dey do?

E dey take inventory of apps and drivers wey fit break on top newer Windows. CompatTelRunner no dey collect passwords. E no be SearchIndexer.exe.

Wetin make am dey run?

Daily or idle trigger fire, or you just install feature update. Runner wey never commot for days don stuck and e make sense to restart di task.

Inspect the running instance

Inside Windows PowerShell, this read-only query show matching process IDs, creation times and executable paths on this PC. (pcm)

Get-CimInstance -ClassName Win32_Process | Where-Object { $_.Name -eq 'CompatTelRunner.exe' } | Select-Object ProcessId, ParentProcessId, CreationDate, Name, ExecutablePath | Format-List

No result or a path we no fit access is inconclusive. Protected processes fit restrict access, and process IDs fit be reused. Keep personal paths local. (pcm)

Use the file-identity guide to compare signatures and product metadata. A filename alone no fit establish safety. (pcm)

E dey safe?

Check dis running file

System32 CompatTelRunner na Microsoft. Di same filename inside "disable telemetry" zip no be am.

Compare the recorded location with the actual file. A familiar folder alone no fit establish identity. (pcm)

C:\Windows\System32\CompatTelRunner.exe

  • Application Experience tasks dey start am
  • No be Windows Search
  • No be Defender

I fit end am?

E dey stop dis run

To end CompatTelRunner.exe dey stop di current inventory. Di task go start again on di next trigger unless you disable dat task.

I fit comot am?

No

No delete CompatTelRunner.exe. Disable Microsoft Compatibility Appraiser inside Task Scheduler if you accept less upgrade-readiness data.

E suppose start with Windows?

Scheduled task dey start am. E no suppose be Startup Apps row.

Measure resource use

Measure the current process rather than assume a universal baseline
CPU and memory Compare several observations for the same PID and workload. This entry get no independently measured universal baseline. (pcm)
Disk and network Attribute activity to the actual process and current task; a filename alone no fit establish expected destinations or transfer volume. (pcm)

File information

CompatTelRunner.exe file information
Executable name CompatTelRunner.exe
Recorded installation path C:\Windows\System32\CompatTelRunner.exe
Publisher Microsoft Corporation
Signature check Inspect the actual file; this entry no dey certify its certificate identity. (pcm)

Common wahala dem

100 percent disk for one hour

On top spinning disk di Appraiser dey slow. Wait, den check Task Scheduler history. SearchIndexer na different row if di disk still dey busy.

Scripts wey dey take ownership of di file

Dem dey break servicing. Use di task, no be ACLs.

How to troubleshoot

Diagnose before you change anything wey fit scatter things.

Task Scheduler > Application Experience

Microsoft Compatibility Appraiser na di usual name.

No replace di runner

Windows Update go fight you.

Technical details

Technical details
CompatTelRunner.exe technical details
Image name CompatTelRunner.exe
Role Compatibility Telemetry runner

Check the identity of running file

A filename alone no fit establish safety. Verify the actual path, signature and product identity. (pcm)

Sources and verification

Recorded source label: August 2026. Dis label no establish independent verification. How we dey do research.

Dis article make sense to you?

Yes or no dey enough. Choose reason if you want, or add short note.

Dis article make sense to you?