Microsoft has fixed a known issue that leads to "lost" system and user certificates after updating some Windows 10 systems.
The problem of lost Windows 10 certificates affects client (Windows 10 1903 or later) and server (Windows Server 1903 or later) platforms in managed environments.
Appears on devices that have been upgraded using obsolete packages through update management tools (eg Windows Server Update Services (WSUS), Microsoft Endpoint Configuration Manager, physical media, or ISO images.
Computers that are updated through Windows Update or Windows Update for Business are not affected, as they always receive the latest operating systems updates.
The issue has been resolved
The problem of lost Windows 10 certificates is now resolved "when you use the latest update packages capabilities Released on November 9, 2020, for Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager, ”says Microsoft.
"For information on verifying that you are using the latest feature update packages, see this unity".
“If you use or create custom means, you should include an update that was released on October 13, 2020 or later. "
Updated media to address this issue is not yet available for Windows 10 20H2 Volume Service Licensing Center (VLSC) and Visual Studio subscriptions - Microsoft says it will be available in the coming weeks.
A solution is available
Microsoft also provides a solution for environments where feature update packages released earlier this month could not be deployed immediately.
"The uninstall window may be 10 or 30 days depending on the configuration of the environment and the version you are updating," says Redmond.
"Next, you need to update to the latest version of Windows 10 after resolving the issue in environment your."
Source of information: bleepingcomputer.com