Home > Storage > PowerStore > Storage Admin > Dell PowerStore: Best Practices Guide > PowerStoreOS upgrades
New versions of the PowerStoreOS are applied using a nondisruptive upgrade process. Because half of the system hardware resources are unavailable during parts of the upgrade, it is recommended to perform upgrades during planned maintenance windows. Alternately, perform upgrades when the system is less busy to minimize the impact to clients. Users should execute a Pre-Upgrade Health Check before their scheduled maintenance window to ensure that any issues can be resolved.