Multi-Language Custom Windows 11 Image

The image appears to contain the language packs, but OOBE cannot switch the Windows UI away from the default language. That usually points to incomplete language components, mismatched media, or servicing order rather than Sysprep itself. Start again from an unmodified Windows 11 WIM and use the Languages and Optional Features ISO that exactly matches the image release, architecture, and build. Add each language-pack CAB first, then add its Basic, OCR, handwriting, speech, and text-to-speech capabilities with DISM Add-Capability. Verify them with Get-Packages, Get-Capabilities, and Get-Intl. Apply or reapply the latest cumulative update only after all language packs and Features on Demand are present, because Microsoft requires that order. Use Set-AllIntl only for the intended default; let OOBE set the user’s preferred UI language. Add matching languages to WinRE and Windows Setup if required. Finally run Sysprep /generalize /oobe /shutdown, capture, deploy, and test before adding audit-mode customizations.