Hi,
Thank you for posting in Microsoft Q&A forum.
General speaking, the CustomSettings.ini is a rules file processed by ZTIGather.wsf after the Welcome screen and at various points during the Task Sequence. The CustomSettings.ini contains instructions to perform specific actions and set various parameters in MDT.
For more detailed information, you can refer to below guides:
MDT Tutorial Part 4: CustomSettings.ini
Back to Basic – CustomSettings.ini – Explained
Please note: The links are not from Microsoft, just for your reference. Thanks for your time.
Best regards,
Simon
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