Windows 10 20H1 Build 18990 available as an ISO download

Windows 10 20H1 Build 18990 available as an ISO download

Microsoft have made available Windows 10 20H1 build 18990 as an ISO replacing the last ISO of 19970. The ISO is available for Windows Insiders to test clean installs of Windows 10 20H1 and is available in 32bit and 64bit versions.

Microsoft released build 18990 to the fast ring last week has just the four known issues:

  • Certain 2D apps (like Feedback Hub, Microsoft Store, 3D Viewer) are incorrectly being treated as having protected content within Windows Mixed Reality. During video capture, these 2D apps block their content from being recorded.
  • When capturing a repro video while filing a bug via Feedback Hub in Windows Mixed Reality, you won’t be able to select Stop video, due to the protected content issue noted above. If you want to submit a repro video, you will need to wait 5 minutes for the recording to time out. If you’d like to file the bug without a repro video, you can close the Feedback Hub window to end the recording and resume filing your bug when you reopen the app in Feedback > Drafts.
  • When viewing Optional drivers in the new section on the Windows Update page, you may notice older drivers showing as available for download. If accepted, they will attempt to install and fail to do so. This is a bug related to revised Windows Update detection logic rather than this new UI. The root cause is understood, and a fix will be available in an upcoming build.
  • Devices configured for dual scan (WSUS and Windows Update) for updates may not be offered new builds in the Fast ring. Selecting Check online for updates from Microsoft Update will scan for updates, but may return with the message, “Your device is up to date.” We’re working on a fix for a future flight.

The ISO is available from Microsoft’s download page and here is my hands on video:

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