Prerequisites
The following are the pre-requisites to run the Custom Sysprep tool:
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Unified Write Filter must be disabled.
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Logging framework must be available on your thin client.
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Power Shell script execution environment must be available.
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Custom Sysprep and Configuration Sysprep (SCCM) scripts must be available.
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Host Name calculation feature must be available.
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If the flash drive or HDD size is more than 32 GB, reduce it to less than 32 GB for a better custom sysprep process.
NOTE You cannot access the thin client if you terminate the Sysprep process. Make sure that the device is ready before you use the Sysprep tool.
CAUTION After you run the Sysprep tool, enable the Unified Write Filter to ensure device security.