> 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/copy-isotousb.md).

# Copy-IsoToUsb

Creates a bootable USB drive from a Windows ISO.

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

## Description

Formats a selected USB disk, mounts the ISO, and copies installation files to the USB volume. Supports FAT32 or NTFS, optional bootsect execution, and optional splitting of large install.wim files.

## Syntax

```powershell
Copy-IsoToUsb [-ISOFile] <String> [-MakeBootable] [-NTFS] [-SplitWim] [[-USBLabel] <String>]
 [-ProgressAction <ActionPreference>] [<CommonParameters>]
```

## Parameters

| Parameter       | Type              | Required | Description                                               |
| --------------- | ----------------- | -------- | --------------------------------------------------------- |
| `-ISOFile`      | `String`          | True     | Full path to the ISO file to mount and copy.              |
| `-MakeBootable` | `SwitchParameter` | False    | Runs bootsect.exe against the USB drive after formatting. |
| `-NTFS`         | `SwitchParameter` | False    | Formats the USB drive as NTFS instead of FAT32.           |
| `-SplitWim`     | `SwitchParameter` | False    | Forces splitting install.wim into .swm files during copy. |
| `-USBLabel`     | `String`          | False    | File system label assigned to the USB drive.              |

## Examples

### Example

```powershell
Copy-IsoToUsb -ISOFile 'C:\Temp\Win11.iso' -MakeBootable -USBLabel WIN11
Creates a bootable USB and copies the ISO contents.
```

### Example

```powershell
Copy-IsoToUsb -ISOFile 'C:\Temp\Win11.iso' -NTFS -USBLabel WIN11NTFS
Creates an NTFS-formatted USB and copies the ISO contents.
```

## Related

* <https://github.com/OSDeploy/OSD/tree/master/docs>


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