Get the classic "Shell:Libraries" back?

if someone found a way to get this and the 7 logon screen and boot animation, then windows 10 can be transformed to fully look like windows 7 (Edit: forgot to mention windows cardspace and parental controls, i know they are not important, but still a good addition)

The boot screen could be possible. Since someone gave the Windows 7 bootloader a valid Secure Boot signature, we could put this in Windows 10 or 11. But I think there are compatibility issues... But if we solve them too, it's basically a complete bootscreen.

Because that bootscreen was not removed at all. It is normally the vista boot screen,a fallback in case something happened to the new one,still kept in modern windows. But you can edit its resources to replace every image with its XP version so it looks like the XP one.

But it will only work on BIOS systems, because the 2000-Vista bootscreen engine requires BIOS interrupts. Nothing will render on a modern UEFI system.

Depending on if that reimplements interrupt 10h completely or only partially. From what I can tell, it's only a partial implementation to allow Windows 7 to boot at all, and not good enough to facilitate graphical output.