Installation and setup changedthird-party/claude-desktop/installation
Nearest release: v2.1.318, published 3 hours 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 3 Nov 2026 18:33 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 3 Nov 2026 18:37 UTC.
Upstream edited
Recorded here
Lines+1added
Lines−1removed
From line
116
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits37to this page, all time
The whole hunk
from line 116, old and new numbered
/
from line 116
116116
117117### Cowork workspace or Claude CLI fails to download
118118
119Claude Desktop downloads the VM workspace bundle that Cowork uses and the Claude CLI binary (the agent helper described under [Endpoint security software](#endpoint-security-software)) from `downloads.claude.ai` whenever a device does not have the versions the app needs. When the workspace download fails or the downloaded file does not pass verification, the app shows **Failed to start Claude's workspace** with the download error under it, for example a message that begins "Claude's workspace download was not the expected file", "Claude's workspace download could not be unpacked on this computer", "Checksum mismatch", "Download failed", or "Request error". When the Claude CLI download fails on a device that has no earlier copy, Chat conversations and Cowork tasks fail to start with "Host Claude Code binary not available. Check that the download completed."
119Claude Desktop downloads the VM workspace bundle that Cowork uses and the Claude CLI binary (the agent helper described under [Endpoint security software](#endpoint-security-software)) from `downloads.claude.ai` whenever a device does not have the versions the app needs. When the workspace download fails or the downloaded file does not pass verification, the app shows **Couldn't download Claude's workspace** or **Failed to start Claude's workspace**, with the download error under it, for example a message that begins "Claude's workspace download was not the expected file", "Claude's workspace download could not be unpacked on this computer", "Checksum mismatch", "Download failed", or "Request error". When the Claude CLI download fails on a device that has no earlier copy, Chat conversations and Cowork tasks fail to start with "Host Claude Code binary not available. Check that the download completed."
120120
121121Restarting the app tries the download again, which is enough when an earlier attempt was only interrupted. When the same message returns on every attempt, the usual cause is a proxy, secure web gateway, or web filter between the device and `downloads.claude.ai`. Such equipment can block the app's requests, cut off the transfer partway (the workspace bundle is more than 1 GB), or return its own page in place of the file. Less often, security software on the device locks or quarantines the downloaded files.
122122
No line in this hunk matches that.