I have two Ethernet networked HP laptops running side by side, both of which were upgraded simultaneously to 20H2 with all updates via in-place installs from an ISO created with the Media Creation Tool, copied to both desktops, then mounted and used to do the upgrade. After that was finished, which was accomplished without any problems, I the used the same registry script on both machines to change my system font. Here is the script, which I merged into the registry on both machines: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Fonts]