Outage in Anthropic
Claude Desktop failing to open for some users
Resolved MinorIncident Report
Summary AI Generated
The Claude Desktop app failed to start for some Windows users and macOS users on older releases due to an identified technical issue. The problem affected the claude.ai service and prevented affected users from launching the desktop application entirely. Anthropic resolved the issue by releasing version 1.1.4328 with a fix, requiring users to download the updated version from the official website.
We have identified an issue leading to the Claude Desktop app failing to start for a subset of Windows users and macOS users on older macOS releases. We are working on rolling out a fix.
Components affected
Anthropic claude.aiTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
3 months ago - at 02/25/2026 11:54PM
If Claude fails to launch on your computer, please download the latest version from download the latest version on https://claude.com/download. We have now fixed the underlying issue.
MONITORING
3 months ago - at 02/25/2026 05:58PM
We have released a version that fixes the issue. Please download the latest version of Claude on https://claude.com/download to update to at least v1.1.4328.
IDENTIFIED
3 months ago - at 02/25/2026 05:30PM
We continue to work on getting a fix deployed as quickly as possible.
IDENTIFIED
3 months ago - at 02/25/2026 04:31PM
We are currently working on deploying a fix to the Claude Desktop app.
MONITORING
3 months ago - at 02/25/2026 04:23PM
A fix has been deployed and we're monitoring error rates.
INVESTIGATING
3 months ago - at 02/25/2026 04:23PM
We have identified an issue leading to the Claude Desktop app failing to start for a subset of Windows users and macOS users on older macOS releases. We are working on rolling out a fix.
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