Any one know of a guide that details the customization you can do with the start menu, taskbar, and etc. when using sysprep? And also using the unattend.xml file with the copyprofile line.
Unsolved Windows 10 and Customization with Sysprep
Hopefully this will be of help to you, it seems to have everything you asked about in your question. I didn't check on the details of the customization but:
customization of image
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You may also want to consider looking up DISM (Deployment Image Servicing Manager, i think anyway) which is a big part of the newer OS Image deployment toolkits.