Update-OSDeployBootUSB

Updates an existing OSDeploy USB drive with new BootMedia from an OSDeployCore BootImage build.

Property	Value
Module	OSDeploy
Platform	Windows 11 (amd64 / arm64)
Requires	Run as Administrator, a completed BootImage build, a USB drive previously created by New-OSDeployBootUSB

Description

Refreshes the BootMedia files on one or more existing OSDeploy USB drives without reformatting or repartitioning. The function:

• Prompts for selection of a completed BootImage from %ProgramData%\OSDeployCore\boot

• Prompts for the specific bootmedia folder (bootmedia or bootmedia_ca2023)

• Locates all connected USB volumes whose label matches -BootLabel (default: OSDEPLOY)

• Copies the selected media to each matching USB volume using robocopy

• Writes a BootMedia.json file to each updated volume

No partitioning or formatting is performed. Use New-OSDeployBootUSB to create a new bootable USB drive.

Syntax

Update-OSDeployBootUSB [-BootLabel <String>] [-DataLabel <String>] [-WhatIf] [-Confirm]

Parameters

Parameter	Type	Required	Description
-BootLabel	String	No	Volume label used to identify USB boot partitions to update. Max 11 characters. Default: OSDEPLOY.
-DataLabel	String	No	Volume label used to identify the USB data partition when copying ESD files. Max 32 characters. Default: OSDCloud.

Examples

# Update all connected USB volumes labeled 'OSDEPLOY'
Update-OSDeployBootUSB

# Update all connected USB volumes labeled 'WinPE'
Update-OSDeployBootUSB -BootLabel 'WinPE'