> For the complete documentation index, see [llms.txt](https://www.osdeploy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.osdeploy.com/powershell-modules/osd/backup-disktoffu.md).

# Backup-DiskToFFU

Captures a physical disk to a Full Flash Update (FFU) image.

| Property | Value                 |
| -------- | --------------------- |
| Module   | OSD                   |
| Platform | WinPE (amd64 / arm64) |

## Description

Interactively selects a source disk and destination data disk, then uses DISM /Capture-FFU to create an FFU backup from WinPE.

## Syntax

```powershell
Backup-DiskToFFU [-ProgressAction <ActionPreference>] [<CommonParameters>]
```

## Parameters

This function does not define function-specific parameters beyond common parameters.

## Examples

### Example

```powershell
Backup-DiskToFFU
Prompts for source and destination disks, then captures the selected source disk to an FFU file.
```

## Related

* <https://github.com/OSDeploy/OSD/tree/master/docs>
* <https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/deploy-windows-using-full-flash-update--ffu>


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