Microsoft confirms power outage at data center; says services impacted include Microsoft Store and Windows Update

Microsoft confirms a power outage at a data center broke Windows 11’s Microsoft Store and Windows Updates. In a statement, Microsoft said, “A power outage at a datacenter is impacting customers’ ability to complete operations in the Microsoft Store and Windows Update. As a result, some users may experience failures or timeouts when installing or updating Microsoft Store apps, or when downloading Windows updates.”“Although power has been restored, service recovery is still in progress. Storage services are gradually returning online, and some customer impact may continue while recovery completes,” statement added.Microsoft said that the company is actively working to restore full service reliability. Customers who are affected are advised to retry Microsoft Store and Windows Update operations later. Impact Statement from Microsoft: Starting at 08:00 UTC on 07 February 2026, a subset of customers using Azure services in the West US region may experience intermittent service unavailability or delays in monitoring and log data for some resources hosted in the affected datacenter areas. Impacted customers may observe degraded performance or delayed telemetry as services continue to recover.Current Status: Earlier today, an unexpected interruption to utility power at one of our West US datacenters resulted in a loss of power to parts of the facility. Backup power systems were automatically activated, and power has since been stabilized across the affected areas.To ensure service stability, engineers are validating and gradually rebalancing traffic through Azure’s software load balancing layer. Services are being restored in phases as health checks complete. We continue to closely monitor service health and performance and will provide updates as recovery progresses. The next update will be provided within 60 minutes, or as events warrant.