# ChxSmartScreen.exe

Windows Process: Microsoft Corporation

Catalog search terms chxsmartscreen, smartscreen app, apprep

Windows, System Component

SmartScreen App Reputation UX host. Na di Windows 10/11 packaged prompt surface wey SmartScreen fit show, no be di smartscreen.exe reputation engine.

## Wetin you need know

Dis one dey draw some SmartScreen warnings. smartscreen.exe still dey do di reputation check.

ChxSmartScreen.exe na di AppRep packaged UI. You dey see am when SmartScreen need modern prompt. To end am go dismiss dat window. E no dey disable reputation lookups.

- **E safe?**: Check the running file path, signature, and publisher. Name alone no fit confirm say e safe.

  **Same tin as smartscreen.exe?**: No. Dis one na di prompt UI

  **I suppose end am?**: Di warning window go close

Feex tok say

If ChxSmartScreen na di name and blue warning dey screen, I go read di file path for dat page. Di engine still be smartscreen.exe.

## Wetin be ChxSmartScreen.exe?

ChxSmartScreen.exe na di SmartScreen App Reputation experience host inside SystemApps. Na AppX package, no be System32\smartscreen.exe.

## Wetin e dey do?

E dey show warning or more-info page. Di lookup still dey pass through SmartScreen. MsMpEng.exe fit scan di same file too.

## Wetin make am dey run?

You open Mark-of-the-Web file or app wey di system no recognize. Di process suppose commot after you choose Run or Don't run.

## 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 'ChxSmartScreen.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](https://feex.it/wiki/l/pcm/software/system/verify-executable-path-signature/) to compare signatures and product metadata. A filename alone no fit establish safety. (pcm)

## E dey safe?

Check dis running file

Di Microsoft SystemApps package na di prompt. ChxSmartScreen.exe inside Downloads no be AppRep.

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

`C:\Windows\SystemApps\Microsoft.Windows.AppRep.ChxApp_*\ChxSmartScreen.exe`

- Packaged UI
- Engine: smartscreen.exe
- No be Defender file scan

## I fit end am?

E dey close di warning

To end ChxSmartScreen.exe be like to close di dialog. SmartScreen policy dey stay. Use Windows Security take change reputation settings.

## I fit comot am?

No

No delete di AppRep package. You go lose di supported SmartScreen warning UI. Reputation policy dey inside Windows Security, no be inside Explorer.

## E suppose start with Windows?

SmartScreen dey start am when need dey. E no be tray app.

## Measure resource use

| 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

| Executable name            | ChxSmartScreen.exe                                                                 |
| -------------------------- | ---------------------------------------------------------------------------------- |
| Recorded installation path | C:\Windows\SystemApps\Microsoft.Windows.AppRep.ChxApp\_\*\ChxSmartScreen.exe       |
| Publisher                  | Microsoft Corporation                                                              |
| Signature check            | Inspect the actual file; this entry no dey certify its certificate identity. (pcm) |

## Common wahala dem

### Warning on top tool wey you trust

Unblock di file or sign am. No delete ChxSmartScreen make you for skip di check forever.

### Two SmartScreen names

smartscreen.exe na di checker. Dis exe na prompt host.

## How to troubleshoot

Diagnose before you change anything wey fit scatter things.

### Read di blocked path on top di UI

Dat file na di question, no be dis host.

### App and browser control inside Windows Security

Di policy dey dere.

## Technical details

Technical details

| Image name | ChxSmartScreen.exe |
| ---------- | ------------------ |
| Package    | AppRep ChxApp      |

## Check the identity of running file

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

## Related

Dis entities connect to dis article. Type dey show for every link.

[smartscreen.exe: Windows Process](https://feex.it/wiki/l/pcm/process/smartscreen.exe/)[MsMpEng.exe: Windows Process](https://feex.it/wiki/l/pcm/process/msmpeng.exe/)[Check an executable path and digital signature: Guide](https://feex.it/wiki/l/pcm/software/system/verify-executable-path-signature/)[Read Task Manager and compare process activity: Guide](https://feex.it/wiki/l/pcm/software/system/how-to-read-task-manager/)[Security processes: Category](https://feex.it/wiki/process/security/)

## Sources and verification

Recorded source label: August 2026. Dis label no establish independent verification. [How we dey do research](https://feex.it/wiki/research/).

- [Microsoft Learn: SmartScreen ](https://learn.microsoft.com/windows/security/operating-system-security/virus-and-threat-protection/microsoft-defender-smartscreen)· Reputation vs UI
- [Microsoft Support: Windows ](https://support.microsoft.com/windows)· Public support naming
- [Foxhole process map ](https://foxhole.feex.it/)· First-party samples on top Windows PCs. No be lab benchmark.
- [Microsoft Sysinternals: Sigcheck ](https://learn.microsoft.com/en-us/sysinternals/downloads/sigcheck)· Dey explain how to check file signatures. Dis reference no establish the identity or safety of any particular running file.
- [Microsoft: Get-CimInstance ](https://learn.microsoft.com/en-us/powershell/module/cimcmdlets/get-ciminstance)· Read-only local process-query method. (pcm)
- [Microsoft: Win32_Process properties ](https://learn.microsoft.com/en-us/windows/win32/cimwin32prov/win32-process)· Documents process IDs, executable paths, creation dates and parent-ID reuse. (pcm)

## Dis article make sense to you?

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

Quick facts

The short identity of dis page. Specs, sources, and the full story still dey inside the article.

- **Type**: Windows Process

  **Publisher**: Microsoft Corporation

  **Executable**: ChxSmartScreen.exe

  **Typical path**: C:\Windows\SystemApps\Microsoft.Windows.AppRep.ChxApp\_\*\ChxSmartScreen.exe

  **Record context**: Feex Wiki reference entry

Recorded source status: Feex Reviewed: Recorded source label: August 2026. Dis label no establish independent verification.

---

Source: [Canonical Feex Wiki page](https://feex.it/wiki/l/pcm/process/chxsmartscreen.exe/)

[Developer guide](https://feex.it/wiki/developers/) | [API policy](https://feex.it/developers/api-policy/) | [Agent guidance](https://feex.it/wiki/llms.txt)