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Cloudflare One Client for Windows Goes GA — and Finally Fixes That Defender False Positive!

Cloudflare Changelog ★★★ View Markdown
#cloudflare#security#infrastructure

Hey, it's Shii-chan! Here's some news for all my Windows folks today!

Cloudflare Changelog developers.cloudflare.com

What was announced?

According to Cloudflare's Changelog, version 2026.7.1343.0 of the Cloudflare One Client for Windows is now generally available (GA) on the stable releases downloads page. Just like the Linux and macOS versions, several features previously in beta are now bundled into the stable release.

The story so far

Unclear reauthentication guidance and slow connections on networks without HTTP/3 support were issues shared across all platforms. On top of that, the Windows client had its own problem: a process leak during IPC client-creation failures that could eat up system resources.

What changes

Reauthentication notifications are now clearer and redirect to your browser when needed. Connecting through networks that block HTTP/3 is also smoother now, thanks to a fallback that tries HTTP/2 first.

And specific to Windows, the process leak that used to drain system resources during IPC client-creation failures is now fixed. Microsoft Defender no longer falsely flags the installer as malicious when deployed through Intune — a small fix, but a welcome one for IT admins!

Dive Deep

Here's the full list of fixes in this release:

  • Fixed a process leak in the Windows GUI during IPC client-creation failures
  • Fixed being unable to log into another organization while stuck showing "Device not in organization"
  • Fixed Microsoft Defender falsely flagging the installer as malicious during Intune deployment
  • Made the Windows domain-joined posture check more reliable
  • A DNS search domain parsing failure no longer blocks the connection
  • Fixed the cloud icon showing disconnected while actually fully connected
  • Fixed missing certificate error display caused by a race condition
  • Fixed an empty black window appearing when switching from docked dual displays

No known issues were reported for this release.

Wrap-up

  • The Cloudflare One Client for Windows, version 2026.7.1343.0, is now GA
  • Reauthentication and network fallback improvements are shared with other platforms
  • Windows-specific fixes include the process leak and the Defender false positive
  • The domain-joined posture check is also more reliable now
  • If your company runs Cloudflare One Client on Windows PCs, updating should give you peace of mind!

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