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.
Any condition that affects the body's blood vessel network may lead to erectile dysfunction. High blood pressure and high cholesterol cause hardening of the arteries, including those of the penis. An inefficient heart, such as in congestive heart failure or after a heart attack, may also cause weak erections.