Just like to find out more about the problem from you. When you are trying to adjust AF security setting, is the System Explorer running as a domain user? When you say that there is no way to add domain\everyone account, do you mean that you are unable to find the account when you try to add the user? Which version of AF are you using?
I have tried running the AF 2.1 server on a machine that has joined a domain as a local administrator. I can run the System explorer and still search for users in the domain, only that I would be prompted to give a domain credentials to perform the search.
I would be curious to know more about what you are facing, having screenshots would be helpful in this case =)
You can also contact our Technical Support team, they would be able to provide you assistance on this issue as well.
please let me emphasize Han Yong's suggestion.
I would like to invite you to contact our Technical Support team instead (TechSupport@osisoft.com - +1-510-297-5828). The OSIsoft vCampus program and its various features are really meant for programming, development and integration topics. Just like Microsoft's MSDN. On the other hand, "end-user" and "PI administration" questions (e.g. installation, configuration, usage, etc.) are still best handled by our technical support team. The technical support team has the experience and the tools to provide remote assistance to you in any non programming issues related to the PI System.