Horizon Cloud Service next-gen: Issues with launching virtual desktops - East US Region

Update timeline

1. investigating Apr 24, 2026, 03:10 PM UTC

   The Horizon Cloud Service team is investigating an issues impacting session launch in Azure EastUS region. Customer's may experience failure while launching desktops or applications. We are actively working to determine the root cause and will provide updates as more information becomes available. Service reliability is a top priority for Horizon Cloud Service, and we are committed to continuous improvements in our systems.

2. investigating Apr 24, 2026, 04:11 PM UTC

   The Horizon Cloud Service team is currently investigating issues affecting the launch of new virtual desktop sessions, resulting from an ongoing Microsoft Azure outage in EastUS region. For the latest updates from Microsoft, please visit: https://azure.status.microsoft/en-us/status Our team is actively monitoring the situation and will provide another update within the next 2 hours or sooner as more information becomes available.

3. identified Apr 24, 2026, 06:39 PM UTC

   Microsoft Azure has identified the issue, and mitigation efforts are in progress in the East US region. For the latest updates from Microsoft, please visit: https://azure.status.microsoft/en-us/status Our team is actively monitoring the situation and will provide another update within the next 2 hours or sooner as more information becomes available.

4. identified Apr 24, 2026, 08:44 PM UTC

   Microsoft Azure has identified the issue, and mitigation efforts are in progress in the East US region. For the latest updates from Microsoft, please visit: https://azure.status.microsoft/en-us/status Our team is actively monitoring the situation and will provide another update within the next 2 hours or sooner as more information becomes available.

5. monitoring Apr 24, 2026, 11:00 PM UTC

   Microsoft Azure has made progress in mitigating the issue in the East US region. Recovery has been completed in Availability Zone 01, and improvements are being observed. However, mitigation efforts are still ongoing in Availability Zones 02 and 03 due to a regression, with resolution expected within the next couple of hours. We are actively monitoring the situation and will provide another update within the next 2 hours or sooner as more information becomes available.

6. monitoring Apr 25, 2026, 01:03 AM UTC

   Azure reports that service in East US Availability Zone 01 has been restored. Mitigation efforts are currently focused on addressing a regression within Availability Zones 02 and 03. Microsoft expects to resolve these remaining issues within the next few hours. We are actively monitoring the situation and will provide another update within the next 4 hours or sooner as more information becomes available.

7. resolved Apr 25, 2026, 02:05 AM UTC

   Microsoft has confirmed that the issue is resolved. If you are experiencing any residual effects from this issue, please open a Service Request for assistance. We apologize for the inconvenience and thank you for your patience and continued support. Service reliability is a top priority at Horizon Cloud Service, and we are making continuous improvements to better our systems.