Task Sequence fails with error 0x80070490

Task Sequence fails with error 0x80070490

You might see this error when deploying a captured image in the step Apply Operating System:

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When taking a closer look at SMSTS.log we will see these error’s:

Unable to find a Windows system root at C:

Failed to find the system root for the applied OS.

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This might be because we have chosen the wrong image, for example the System Reserved BitLocker partition.

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If this is the case select the right image (here image 2-2) you could also remove the System Reserved partition from you capture task Sequence, but be aware that there could be situations where you would like it to be thereSmile

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Partition deleted:

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Please note that there are other reasons for this error, the disk might not be available at all (just to mention one other reason). 

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Modern Workplace consultant and a Microsoft MVP in Enterprise Mobility.
Modern Workplace consultant and a Microsoft MVP in Windows and Devices for IT.

Infrastructure architect with focus on Windows Client management & security.

Cloud & security specialist with focus on Microsoft backend products and cloud technologies.

Infrastructure architect with focus on design, implementation, migration and consolidation.

Infrastructure consultant with focus on cloud solutions in Office365 and Azure.

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