How to Install and Validate Windows Server Failover Clustering
Applies to: Windows Server 2019, 2022 and 2025.
Failover Clustering provides coordinated high availability for supported workloads. Microsoft cluster validation is required before production creation.
Recovery procedures must be tested before an outage. Protect backup credentials and keep at least one recovery path separate from production. Visit networkmanager.info.
Prerequisites
- Prepare domain-joined nodes with matching patch levels.
- Configure redundant networks and supported storage.
- Use workload-compatible hardware.
- Resolve all validation errors.
Procedure
Step 1: Install feature
Run on every node.
Install-WindowsFeature Failover-Clustering -IncludeManagementToolsStep 2: Review nodes
Confirm version, adapters and storage.
Get-ComputerInfo | Select CsName,OsBuildNumber
Get-NetAdapter
Get-DiskStep 3: Run validation
Test all planned nodes.
Test-Cluster -Node NODE01,NODE02 -Include 'Storage','Inventory','Network','System Configuration'Step 4: Review report
Open the generated HTML and remediate errors.
Step 5: Repeat validation
Do not create production cluster until results are supported.
Verification
Feature should be installed and validation report acceptable.
Get-WindowsFeature Failover-Clustering
Get-ChildItem C:\Windows\Cluster\ReportsRollback and recovery considerations
Validation is non-destructive in supported planning conditions, but storage tests can affect disks. Remove the feature only after confirming no cluster exists.
Operational notes
A warning needs documented evaluation; an error must not be ignored.
