If you get an error message when you try to start the Active directory certificate service,
Cannot manage active directory certificate services. The system cannot find the file specified: 0x800700002 (WIN32: 2 ERROR_FILE_NOT_FOUND).
You can follow the below steps to overcome this issue,
Basically what you need to do is to run the Post Deployment Configuration again and complete the installation of the Certification authority.
I have copy paste the steps to do that and hope My help will not need to configure this as it was already there in the configuration file.
Once this is successful, you can restart the PC and next time you will be able to open your Certification Authority.