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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 5 Oct 2026
One change · claude-code

Troubleshoot installation and login changedtroubleshoot-install

Nearest release: v2.1.290, published an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 5 Oct 2026 16:22 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 5 Oct 2026 16:37 UTC.

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First seen 14 Aug 2026 this site's first read of the page
Recorded edits18to this page, all time

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407407| Windows CMD | `'claude' is not recognized as an internal or external command` |
408408| PowerShell | `claude : The term 'claude' is not recognized as the name of a cmdlet` |
409409 
410This means the install directory isn't in your shell's search path. See [Verify your PATH](#verify-your-path) for the fix on each platform.
410On Windows, if the error started right after Claude Code updated, see [restore `claude.exe` from its backup](#claude-exe-missing-after-an-update-on-windows).
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412Otherwise, see [Verify your PATH](#verify-your-path) for the fix on each platform.
413 
412414### `curl: (56) Failure writing output to destination`
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414416The `curl ... | bash` command downloads the script and pipes it to Bash for execution. This error, and the related `curl: (23) Failure writing output to destination`, means Bash did not receive the complete script. Exit code 56 indicates the download itself was interrupted, and exit code 23 indicates curl could not write what it received to the pipe, usually because Bash exited early.
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588590 `claude.exe` missing after an update on Windows
589591</h3>
590592 
591If your terminal reports `'claude' is not recognized` right after Claude Code updated on Windows, check whether `%USERPROFILE%\.local\bin` still contains `claude.exe`. If that directory isn't on your PATH at all, see [Fix your PATH](#command-not-found-claude-after-installation) instead. To update on Windows, Claude Code renames the existing `claude.exe` aside to a backup and moves the new version into its place. If moving the new version into place fails and Claude Code can't rename the backup back either, the directory keeps the backup but has no `claude.exe`.
593If your terminal reports `'claude' is not recognized` right after Claude Code updated on Windows, check whether `%USERPROFILE%\.local\bin` still contains `claude.exe`. If that directory isn't on your PATH at all, see [Verify your PATH](#verify-your-path) instead. To update on Windows, Claude Code renames the existing `claude.exe` aside to a backup and moves the new version into its place. If moving the new version into place fails and Claude Code can't rename the backup back either, the directory keeps the backup but has no `claude.exe`.
592594 
593595The backup is a file in the same directory whose name begins with `claude.exe.old.` followed by a numeric timestamp. Run the following in PowerShell to rename the newest backup back to `claude.exe`:
594596 
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