Claude Code Windows All Sessions Silently Deleted After Background Update

What this error means

All sessions disappeared from Desktop app sidebar after silent background update is a Claude Code failure pattern reported for developers trying to recover claude code sessions deleted after silent background update on windows. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

After silent background update on 2026-05-13 (~08:52 local time Berlin), all Claude Code sessions disappeared from Desktop app sidebar on Windows. Users lost all conversation history and project context. Issue is brand new (same day as discovery).

Common causes

• After a silent background update, all Claude Code sessions are permanently deleted from the Desktop app sidebar, causing loss of ongoing development context and conversation history.
• After silent background update on 2026-05-13 (~08:52 local time Berlin), all Claude Code sessions disappeared from Desktop app sidebar on Windows. Users lost all conversation history and project context. Issue is brand new (same day as discovery).

Quick fixes

1. Confirm the exact error signature matches All sessions disappeared from Desktop app sidebar after silent background update.
2. Check the Claude Code account, local tool state, and provider configuration involved in the failing workflow.
3. Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

• Verify the command, editor, extension, or API client that produced the error.
• Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
• Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

1. Capture the exact error message and the command, editor action, or request that triggered it.
2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
3. Review the source evidence below and compare it with your environment.
4. Apply one change at a time and rerun the smallest failing action.
5. Keep the working fix documented for the team or deployment environment.

How to prevent it

• Keep provider/tool configuration documented.
• Record non-secret diagnostics such as tool version, provider name, model name, and command path.
• Add a lightweight check before CI or production workflows depend on the tool.

Sources checked

• https://github.com/anthropics/claude-code/issues/58608

Evidence note: After silent background update on 2026-05-13 (~08:52 local time Berlin), all Claude Code sessions disappeared from Desktop app sidebar on Windows. Users lost all conversation history and project context. Issue is brand new (same day as discovery).

Related errors

• Claude Code session data corruption after update
• Claude Code Desktop local storage cleared on update

FAQ

What should I check first?

Start with the exact All sessions disappeared from Desktop app sidebar after silent background update text and the smallest action that reproduces it.

Can I ignore this error?

No. Treat it as a failed Claude Code workflow until the root cause is understood.

Is this guaranteed to have one fix?

No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.

How do I know the fix worked?

Rerun the same command, editor action, or request. The fix is working when that action completes without All sessions disappeared from Desktop app sidebar after silent background update.