few weeks ago I fixed a problem where the user accts feature became corrupted...and now somehow I cant add additional person(s) in family acct creation. the dialog box opens, but just keeps loading.
Try to run a repair either by booting from a Windows 10 install disk or by creating a Windows 10 Bootable media using the media creation tool: Link Removed
Try to run a repair either by booting from a Windows 10 install disk or by creating a Windows 10 Bootable media using the media creation tool: Link Removed