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Dineshh's avatar
Dineshh
Copper Contributor
Sep 14, 2026

Windows11 Insider Preview 29667.1000 fails to install, stuck in boot window

Windows11 Insider Preview 29667.1000 fails to install

; it gets stuck in the boot window. After 2 reboots, it has been in the boot window for over 3 hours. I had to force-shut the system twice and reboot back to the existing Win 11 26H2. Any solution, anyone?

2 Replies

  • dbarselow's avatar
    dbarselow
    Copper Contributor
    Sep 14, 2026

    Hello dineshh, what type of media are you using such as DVD, or a USB thumb drive. If your using a thumb drive format it three times with UEFI AS YOU FORMAT BUT BRFORE YOU DO BE SURE TO HAVE A COPY TO MAKE SURE YOU always have a copy copy OF

    the UEFI to the newly formatted thumb drive and run it fro their.

     

    • HDinesh's avatar
      HDinesh
      Copper Contributor
      Sep 23, 2026

      This works when I have to completely format my system. 

      I have no issues with the working of the system; the updates, however,

      are failing.