The answer is that the custom image is too large for the 60 GB SSD. Error 0x80070070 directly translates to ERROR_DISK_FULL, meaning the decompressed Windows image, along with drivers and applications, exceeds the available free space on the target disk during the Apply Operating System phase of MDT deployment. This is a classic MDT disk space error triggered when the WIM file’s expanded size outstrips the partition capacity, especially on smaller SSDs like the 60 GB drives in this scenario. On the MD-102 exam, this question tests your ability to map specific error codes to their root causes in deployment workflows, often appearing as a trap where candidates blame RAM or network issues instead. Remember the mnemonic: “70-70, disk is dirty” — the 0x80070070 code always points to a full disk, not a hardware failure.
MD-102 Deploy Windows client Practice Question
This MD-102 practice question tests your understanding of deploy windows client. 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.
You are deploying a custom Windows 10 image to 200 new laptops using MDT. The deployment fails on several devices at the 'Apply Operating System' step with error 0x80070070. The laptops have 60 GB SSDs and 4 GB RAM. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The custom image is too large for the 60 GB SSD.
Error 0x80070070 translates to 'insufficient disk space' (ERROR_DISK_FULL). During the 'Apply Operating System' step, MDT decompresses the custom WIM image and applies it to the local disk. With a 60 GB SSD, if the custom image (including drivers, updates, and applications) exceeds the available free space after partitioning, the deployment fails. This is the most direct cause given the error code and hardware constraints.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The laptops have insufficient RAM (4 GB) to run the deployment.
Why it's wrong here
4 GB RAM is sufficient for Windows 10 deployment.
✗
The deployment share is not accessible over the network.
Why it's wrong here
Network issues would produce different errors.
✗
The custom image is missing critical drivers.
Why it's wrong here
Missing drivers cause different errors, not 0x80070070.
✓
The custom image is too large for the 60 GB SSD.
Why this is correct
Error 0x80070070 means 'Not enough disk space'. The image likely exceeds available space.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse error 0x80070070 with a RAM issue (since low RAM can cause other errors) or assume network connectivity is the problem, but the error code explicitly points to disk space, not memory or network.
Detailed technical explanation
How to think about this question
MDT's 'Apply Operating System' step uses DISM to apply the WIM file to the target partition. The WIM is decompressed and expanded, requiring roughly 1.5x to 2x the size of the compressed image in free space. For a typical custom Windows 10 image (e.g., 8-12 GB compressed), the expanded size can be 20-30 GB, and with additional driver packages and applications, the total can easily exceed the 60 GB SSD's usable capacity (typically ~55 GB after system reserved partitions). The deployment log (BDD.log) will show 'Not enough storage is available to process this command' confirming the disk space issue.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MD-102 question in full detail.
Deploy Windows client — This question tests Deploy Windows client — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The custom image is too large for the 60 GB SSD. — Error 0x80070070 translates to 'insufficient disk space' (ERROR_DISK_FULL). During the 'Apply Operating System' step, MDT decompresses the custom WIM image and applies it to the local disk. With a 60 GB SSD, if the custom image (including drivers, updates, and applications) exceeds the available free space after partitioning, the deployment fails. This is the most direct cause given the error code and hardware constraints.
What should I do if I get this MD-102 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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