Many thanks [NAME] G. I downloaded and ran the update compatibility checker and everything passed... then MU magically enabled the update. No explanation but I'm happy.
This model appears in the list of supported Latitudes for Windows 11. How can I tell why it won't offer the upgrade due to a 'Safeguard Hold' by M$ ?
Latitude 5310 with W10 shows a 'Safeguard Hold' preventing upgrade to W11