Problems with renewing my exchange certificate. I was getting the following error:
[PS] C:\windows\system32>Get-ExchangeCertificate The Exchange Certificate operation has failed with an exception. The error message is: Unknown error (0xe0434f4d) + CategoryInfo : InvalidOperation: (:) [Get-ExchangeCertificate], LocalizedException + FullyQualifiedErrorId : B5063A5B,Microsoft.Exchange.Management.SystemConfigurationTasks.GetExchangeCertificate
After searching the internet there was a suggestion to start the IIS Admin service. The service was, indeed, disabled. Starting the service resolved the issue.