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MD-102 Practice Question: Deploying a custom Windows 10 image to 200 new…
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?
⚠ Common exam trap
Many candidates 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.
Answer choices
Why each option matters
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.
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.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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