💡 Our Technical Review in summary
1. Summary
Microsoft 365 Copilot experienced a service disruption on February 13, 2026, caused by a GPU driver issue within a subset of European infrastructure. This hardware failure reduced processing capacity, prompting Microsoft to implement traffic management measures to maintain stability. Due to these controls being applied more aggressively than intended, the service disruption briefly extended beyond the European region for approximately 25 minutes.
2. Impact
Users encountered failures or connection timeouts when attempting to access or use Microsoft 365 Copilot. While the root cause was localized to Europe, the temporary traffic throttling resulted in a short-lived impact on global users. The incident occurred between 1:26 PM UTC and 1:54 PM UTC.
3. Status
Resolved. Affected components have been restored to full capacity and mitigation steps are complete. A formal Post-Incident Report (PIR) has been published and is available in the Microsoft 365 Service Health Dashboard for detailed review of the root cause and future preventative actions.
Microsoft Official Issue Details
User Impact
Users may experience failures or timeouts while accessing Copilot.
Status: postIncidentReviewPublished
Service: Microsoft 365 suite
Classification: incident
Origin: microsoft
Updates
- 2026-02-20 15:44
A post-incident report has been published. - 2026-02-17 21:48
A post-incident report has been published. - 2026-02-13 15:52
Title: Some users may experience failures or timeouts while accessing Microsoft Copilot (Microsoft 365)User impact: Users may experience failures or timeouts while accessing Copilot.
Final status: We’ve applied the mitigation and the affected components have been restored to full-service capacity. We will continue to monitor service availability and investigate the underlying root cause.
Scope of impact: Impact was specific to user attempting to access Copilot.
Start time: Friday, February 13, 2026, at 1:26 PM UTC
End time: Friday, February 13, 2026, at 1:54 PM UTC
Root cause: A driver issue on a subset of Graphics Processing Units (GPUs) affected a portion of the infrastructure supporting Microsoft 365 Copilot in Europe. This caused some processing capacity to become temporarily unavailable, which led to a reduction in available capacity within the environment and limited the service’s ability to handle requests at normal levels.
To reduce user impact while recovery actions were underway, traffic management measures were applied to control request volumes and protect overall service stability. During this process, the traffic controls were briefly applied more aggressively than intended, which resulted in some users outside the Europe region also experiencing impact for a short period (approximately 25 minutes).
As a result of the reduced capacity and the temporary traffic management actions, some users experienced failures or timeouts when accessing Microsoft 365 Copilot until the affected components were restored.
Next Steps
– For a more comprehensive list of next steps and actions, please refer to the Post Incident Report document. - 2026-02-13 15:04
This quick update is designed to give the latest information on this issue.We’re continuing to restart the affected components and observing reduced user impact. We will continue to apply the controlled recovery steps and monitor service availability.
- 2026-02-13 14:31
Title: Some users may experience failures or timeouts while accessing Microsoft Copilot (Microsoft 365)User impact: Users may experience failures or timeouts while accessing Copilot.
Current status: We’ve identified an underlying service issue affecting a subset of infrastructure components. We’ve confirmed a remediation plan and are restarting the affected components to restore full service capacity.
Scope of impact: Impact is specific to users located in Europe attempting to access Copilot.
Next update by: Friday, February 13, 2026, at 3:30 PM UTC
