Active Directory (AD) is a directory service that Microsoft developed for Windows domain networks. It is included in most Windows Server operating systems as a set of processes and services. Initially, Active Directory was only in charge of centralized domain management.
Erection problems can have many causes. 1  Physical problems, such as injury to nerves or loss of blood supply to the penis 2  . Other health problems, such as diabetes, high blood pressure, anxiety, and depression.  Side effects of certain medicines.
The idea was that plaque buildup reduces blood flow in the penis, making an erection difficult. However, experts now believe that erectile dysfunction preceding heart problems is more often due to the dysfunction of the inner lining of the blood vessels (endothelium) and smooth muscle. Endothelial dysfunction causes inadequate blood supply to the heart and impaired blood flow to the penis, and aids in the development of atherosclerosis.