[KBA-77598] Directory role does not start after installing Windows updates on a Windows 10 System
This article explains why the Directory role does not start after performing a Windows update on a Windows 10 System.
After installing Microsoft Windows updates KB4025344 and KB4025338 on Windows 10 builds 1507 or 1511 with .NET framework 4.6.1 and then restarting your computer, the Directory role does not start properly.
The Directory role does not start and the Genetec™ log in Event Viewer displays the following exception:System.Security.Cryptography.CryptographicException: Invalid algorithm specified.
An update to .NET framework 4.6.1 provided by Microsoft® is not compatible with certain versions of Security Center.
To resolve this issue, install .NET framework 4.6.2.
This issue affects Security Center version 5.4 and later, and is resolved in Security Center version 5.7.