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.
Common Causes of ED. What causes erectile dysfunction? More than 90 percent of all ED can be traced to a physical (organic) cause. This cause is usually due to slow and steady decrease of blood flow to the penis, which eventually leads to inadequate and inefficient blood storage in the penis after it becomes erect. This is commonly referred as a venous leak.