> For the complete documentation index, see [llms.txt](https://documentation.2pintsoftware.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.2pintsoftware.com/deployr/getting-started/generate-windows-pe-boot-images/generating-usb-flash-media.md).
# Generating USB Flash Media
Create bootable DeployR USB media from the generated WinPE ISO.
### Before you begin
You need:
* A USB flash drive.
* Access to the DeployR Content `Boot` folder.
* The `DeployR_x64_noprompt.iso` file from that folder.
{% hint style="danger" %}
This process permanently erases the selected USB drive. Confirm the disk number and size before running `clean`.
{% endhint %}
### Prepare the flash drive
1. Insert the USB flash drive.
2. Open PowerShell or Command Prompt as an administrator.
3. Start DiskPart:
```
diskpart
```
4. List the available disks:
```
list disk
```
5. Select the USB drive. Replace `1` with the correct disk number.
```
select disk 1
```
6. Clean, partition, format, and assign the drive:
```
clean
create partition primary
select partition 1
format fs=fat32 quick LABEL="DeployR"
assign
exit
```
The flash drive is ready for the WinPE media.
Prepare the USB flash drive with DiskPart.
### Copy the DeployR WinPE media
1. Open the DeployR Content `Boot` folder.
2. Locate `DeployR_x64_noprompt.iso`.
3. Mount or extract the ISO file.
4. Copy its contents to the root of the prepared flash drive.
In this example, the ISO is mounted as `D:`. Its contents are copied to USB drive `E:`.
Copy every file and folder from the mounted ISO.
Keep the ISO folder structure intact. Do not copy the ISO file itself. The flash drive must contain the extracted boot files.
---
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