question

@NipunKaplish-3047 Thanks for posting in our Q&A.

For timeout issue, please try to edit the Enrollment Status page and try increase the "Show an error when installation takes longer than specified number of minutes" setting. And then check if it is successful to enroll.
https://docs.microsoft.com/en-us/mem/intune/enrollment/windows-enrollment-status#available-settings

Also, we can use Michael Niehaus's script to decode what is exactly failing (most likely an app installation timeout) https://oofhours.com/2020/07/12/windows-autopilot-diagnostics-digging-deeper/
Note: Non-Microsoft link, just for the reference.

At the same time, please check if this situation is an known issue:
https://docs.microsoft.com/en-us/mem/intune/enrollment/windows-enrollment-status#known-issues

If there is anything update, feel free to let us know.

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