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...
20h2 upgrade
desktop font
file explorer
font change
font issues
fontsubstitution
gadgets
hp laptops
iso installation
microsoft newsbar
networked pcs
notification area
registry editor
registry script
system font
technical support
troubleshooting
user interface
windows 10
windows updates