# backgroundTransferHost.exe

Windows Process: Microsoft Corporation

backgroundtransferhost, background transfer host, bits host search terms catalog

Windows, System Component

Background Transfer API host. Store and some apps dey use am for BITS-style transfer-dem. No be Delivery Optimization service.

## Wetin you need know

Background Transfer API host.

backgroundTransferHost.exe dey host Windows.Networking.BackgroundTransfer work for Store and some desktop apps. Delivery Optimization (DoSvc) na separate peering service for Windows Update and Store packages. If you end this host, e go cancel those Background Transfer jobs, no be DoSvc peering.

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

  **E be the same as Delivery Optimization?**: No. DoSvc na different service

  **I suppose end am?**: That download fit fail

Feex tok say

If I see backgroundTransferHost while Store dey download, I go wait for that transfer. I no dey disable Delivery Optimization just to stop this host.

## Wetin be backgroundTransferHost.exe?

backgroundTransferHost.exe na the Background Transfer API host. Apps and Store dey use am for uploads and downloads wey fit continue for background. No be the Delivery Optimization service.

## Wetin e dey do?

E dey run BackgroundDownloader / BackgroundUploader jobs. BITS-style transfers for those APIs dey land here. Windows Update peering and LAN sharing na DoSvc, different stack entirely.

## Wetin make am dey run?

Microsoft Store, one UWP app, or another client don start background transfer. The host suppose exit when jobs complete. Copy wey dey run forever without any Store activity na the case to check.

## 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 'backgroundTransferHost.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

System32 backgroundTransferHost.exe na Microsoft own. One host wey dey inside downloader zip no be am. This one still be the Background Transfer API, no be Delivery Optimization.

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

`C:\Windows\System32\backgroundTransferHost.exe`

- Background Transfer API host
- Delivery Optimization na DoSvc, no be this image
- Store downloads na common starter

## I fit end am?

Those jobs go fail

If you end backgroundTransferHost.exe e go cancel Background Transfer jobs inside that host. DoSvc fit continue peering. Pause the Store download if na purchase you wan stop, no be this End task alone.

## I fit comot am?

No

No delete backgroundTransferHost.exe. Store and app background downloads go spoil. Delivery Optimization settings no dey remove this host.

## E suppose start with Windows?

Na transfer dey start am. E no be Startup Apps checkbox.

## 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            | backgroundTransferHost.exe                                                         |
| -------------------------- | ---------------------------------------------------------------------------------- |
| Recorded installation path | C:\Windows\System32\backgroundTransferHost.exe                                     |
| Publisher                  | Microsoft Corporation                                                              |
| Signature check            | Inspect the actual file; this entry no dey certify its certificate identity. (pcm) |

## Common wahala dem

### People dey disable DoSvc to stop this host

Delivery Optimization na peering for Update and Store packages. This process na the Background Transfer API. Na two different controls.

### E stuck for 0% for Store

Check this host and the Store app, then DoSvc if the package dey use Delivery Optimization. If you end only DoSvc, API jobs fit still dey run.

## How to troubleshoot

Diagnose before you change anything wey fit scatter things.

### Pause or cancel the Store / app download first

Settings > Apps or the Store downloads page. If the host exit, you don find the job. That one no be DoSvc restart.

### Split DoSvc for Resource Monitor

Delivery Optimization get im own service and cache folder. backgroundTransferHost.exe no go dey that svchost group.

## Technical details

Technical details

| Image name | backgroundTransferHost.exe   |
| ---------- | ---------------------------- |
| Role       | Background Transfer API host |

## 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.

[Delivery Optimization: Windows Service](https://feex.it/wiki/l/pcm/service/delivery-optimization/)[MoUsoCoreWorker.exe: Windows Process](https://feex.it/wiki/l/pcm/process/mousocoreworker.exe/)[Process vs service: Guide](https://feex.it/wiki/l/pcm/software/system/process-vs-service/)[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/)[Windows processes: Category](https://feex.it/wiki/process/windows/)

## 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: background transfers ](https://learn.microsoft.com/windows/uwp/networking/background-transfers)· Background Transfer API host for apps and Store
- [Microsoft Learn: Delivery Optimization ](https://learn.microsoft.com/windows/deployment/do/waas-delivery-optimization)· DoSvc na different download path
- [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**: backgroundTransferHost.exe

  **Typical path**: C:\Windows\System32\backgroundTransferHost.exe

  **Record context**: Feex Wiki reference entry

  **Related service**: [Delivery Optimization](https://feex.it/wiki/l/pcm/service/delivery-optimization/)

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/backgroundtransferhost.exe/)

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