Where does Windows 10 throw user files when upgrading from Windows 7?

Question

Microsoft

Where does Windows 10 throw user files when upgrading from Windows 7?
After the reboot, I issued a missing operating system and that's it.
I went through a bootable flash drive, but there were no old folders in the Users folder. It seems that Windows 10 moved them and the question is where?

Answer 1

C:\Windows.old\