[KBA-77598] Directory role does not start after installing Windows updates on a Windows 10 System - Security Center 5.4 - 5.6

series
Security Center 5.4 - 5.6
revised_modified
2017-08-08

[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.

Summary

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.

Symptoms

The Directory role does not start and the Genetec™ log in Event Viewer displays the following exception:

System.Security.Cryptography.CryptographicException: Invalid algorithm specified.

Cause

An update to .NET framework 4.6.1 provided by Microsoft® is not compatible with certain versions of Security Center.

Workaround

To resolve this issue, install .NET framework 4.6.2.

Status

This issue affects Security Center version 5.4 and later, and is resolved in Security Center version 5.7.