Hi, @corne nietnodig
Thank you for posting in Microsoft Q&A forum.
If we failed in "create WIM" step, check if we have granted "Everyone" permission on the captures share \MDTSERVER\DeploymentShare$\Captures.
We may follow this step to capture an image:
Open up a command prompt as Administrator (run as) on the reference machine, then map a drive to the deployment share
net use * \\servername\DeploymentShare$ password /user:domain\username
and then cscript \servername\DeploymentShare$\Scripts\LiteTouch.WSF this should bring up the deployment wizard screens, authenticate and choose the sysprep and capture sequence.
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