Update-OSDeployBootISO
Rebuilds the bootable ISO files for a selected OSDeployCore BootImage build.
Module
OSDeploy
Platform
Windows 11 25H2 build 26200 or later (amd64 / arm64)
Requires
Valid license, Run as Administrator, Windows ADK installed, a completed BootImage build
Description
Regenerates the ISO files (bootmedia.iso and optionally bootmedia_ca2023.iso) for a selected completed BootImage from %ProgramData%\OSDeployCore\boot. The existing bootmedia directory content is used as-is — no DISM mount or WIM modification is performed.
The function:
Prompts for selection of a completed BootImage build
Verifies the Windows ADK is installed
Uses the installed ADK's
oscdimg.exeto rebuild the ISO(s)Places the resulting ISOs in the BootImage's root directory
Use this function when you need to regenerate an ISO from existing bootmedia files without rebuilding the entire WinPE image. Use Build-OSDeployBoot to perform a full rebuild.
Syntax
Update-OSDeployBootISO [-WhatIf] [-Confirm]Parameters
The BootImage selection is made with an interactive Out-GridView picker.
-WhatIf
Switch
No
Preview ISO creation after selecting a build.
-Confirm
Switch
No
Confirm each ISO creation operation.
Examples
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