Microsoft removed a Windows 10 2004 safeguard hold applied to block customers from experiencing sporadic shutdowns and restarts on some Microsoft Surface devices after installing the Windows 10 May 2020 Update. Microsoft resolved the issue on June 9 with the release of the June 2020 Patch Tuesday. The safeguard that prevented the devices’ users from upgrading to the latest Windows 10 version was removed on June 29. It can take up to 48 hours before the update to Windows 10, version 2004 will be offered, Microsoft explains on its Windows 10 health dashboard entry.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-lifts-windows-10-2004-update-block-on-surface-devices/