This MD-102 practice question tests your understanding of prepare infrastructure for devices. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Your organization wants to use Windows Autopilot to deploy new Windows 11 devices. What is required to register a device with Windows Autopilot?
The device's product key
Why wrong: Product keys are for licensing, not device identity.
The device's hardware hash (4K HH)
The hardware hash uniquely identifies the device and is required for Autopilot registration.
The user's Microsoft account
Why wrong: Autopilot uses Azure AD or Microsoft Entra ID accounts, not personal Microsoft accounts.
The device's BIOS password
Why wrong: BIOS password is unrelated to Autopilot.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The device's hardware hash (4K HH)
Windows Autopilot requires the device's hardware hash (4K HH) to uniquely identify the device during the registration process. This hash is generated from the device's hardware components and is uploaded to the Microsoft Intune or Partner portal to associate the device with an Autopilot profile. Without the hardware hash, Autopilot cannot recognize the device as registered and will not apply the deployment profile.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The device's product key
Why it's wrong here
Product keys are for licensing, not device identity.
The device's hardware hash (4K HH)
Why this is correct
The hardware hash uniquely identifies the device and is required for Autopilot registration.
Related concept
Read the scenario before looking for a memorised answer.
The user's Microsoft account
Why it's wrong here
Autopilot uses Azure AD or Microsoft Entra ID accounts, not personal Microsoft accounts.
The device's BIOS password
Why it's wrong here
BIOS password is unrelated to Autopilot.
Common exam traps
The trap here is that candidates often confuse the hardware hash with the product key, assuming that a license or activation key is needed for Autopilot registration, but Autopilot relies solely on hardware-based identification.
Detailed technical explanation
The hardware hash (4K HH) is a base64-encoded string containing details like the device's TPM endorsement key, disk serial numbers, and MAC addresses, computed using the Get-WindowsAutopilotInfo PowerShell script or OEM tools. Under the hood, Autopilot uses this hash to match the device to a tenant's Autopilot profile via the Microsoft Device Registration Service (DRS), enabling zero-touch deployment. In real-world scenarios, if the hash is not collected from a device running Windows 10/11 (e.g., from a pre-provisioned image), the device will fall back to a standard OOBE experience instead of Autopilot.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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FAQ
Prepare infrastructure for devices — This question tests Prepare infrastructure for devices — Read the scenario before looking for a memorised answer..
The correct answer is: The device's hardware hash (4K HH) — Windows Autopilot requires the device's hardware hash (4K HH) to uniquely identify the device during the registration process. This hash is generated from the device's hardware components and is uploaded to the Microsoft Intune or Partner portal to associate the device with an Autopilot profile. Without the hardware hash, Autopilot cannot recognize the device as registered and will not apply the deployment profile.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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