Run AD DS installation prerequisite tests before promotion

Frame this document as a source-led configuration and assurance check: Run AD DS installation prerequisite tests before promotion. Only the official source and traced locations below supply facts. Confirm applicability before acting.

Source fact:

The official Install Active Directory Domain Services on Windows Server from Microsoft supports the following bounded statements:

• AD DS can be installed and configured through Windows PowerShell or Server Manager. The research record locates this support at Opening overview.
• The PowerShell workflow includes test cmdlets before new-forest, child-domain, or replica-controller installation. The research record locates this support at Sections: Use test cmdlets; installation scenarios.

Only the traced statements above are asserted as source facts. Apply the review to forests, domains, controllers, directory partitions, trusts, sites, replication links, service accounts, and delegated roles after confirming that the source and deployed context match.

What the source does not establish

A successful prerequisite test does not replace backup, DNS, replication, and security review. The citation is not a substitute for observed state, authorization, compliance evidence, or dependency health. Examine Windows DNS, time synchronization, network reachability, PKI, backups, virtualization safeguards, and privileged identity before translating the source into an operational decision.

Applicability questions

• For source statement 1 at Opening overview, which observable configuration, record, or test can confirm applicability here?
• For source statement 2 at Sections: Use test cmdlets; installation scenarios, which observable configuration, record, or test can confirm applicability here?
• What inventory proves which parts of forests, domains, controllers, directory partitions, trusts, sites, replication links, service accounts, and delegated roles are in and out of scope?
• Which condition in Windows DNS, time synchronization, network reachability, PKI, backups, virtualization safeguards, and privileged identity must be healthy before evidence is trustworthy?
• What result would disprove the working assumption and return the issue to the owner?

DSE recommendation:

DSE recommends using the cited source as the evidence anchor for this decision. Begin by recording scope and current state before deciding whether a change is warranted. Record the source location, examined part of forests, domains, controllers, directory partitions, trusts, sites, replication links, service accounts, and delegated roles, observed and expected states, owner, and reason for deviation.

Do not move from citation to production in one step. Pilot the decision where practical, observe agreed signals, retain a reversal point, and verify Windows DNS, time synchronization, network reachability, PKI, backups, virtualization safeguards, and privileged identity. Handle credentials, keys, recovery data, and personal information through approved secure channels.

Verification and evidence

Keep the source locations Opening overview; Sections: Use test cmdlets; installation scenarios adjacent to the sanitized artifacts used for comparison. Prefer directory and policy exports, replication and locator tests, event logs, trust state, role ownership, and controlled authentication tests, with enough identity and timing data for an independent recheck.

Retain the starting state, authorization, execution record, outcome, deviation, and final state as one review package. Move disruptive checks to an approved test path. Reopen the decision when versions, design, dependencies, ownership, or official guidance changes.

Official references

• Install Active Directory Domain Services on Windows Server — Microsoft