Windows Insider install issue

Barry Cannon 120 Reputation points
2026-08-07T22:13:59.2033333+00:00

I am running Windows 11 Pro, currently I am on Windows 11 Pro Insider preview Evaluation Copy Build 26300_8772_ge_prerelease_im.260626-2010, under Settings, under Systemunder about under windows specification, this is showing

Edition Windows 11 Pro Insider Preview

Version 26H2

Installed on ‎28-‎Jan-‎26

Evaluation expires on ‎11-‎Aug-‎26 11:09

OS build 26300.8772

Experience Windows Feature Experience Pack 1000.26100.403.0

my Windows update is trying to install 25H2 whuih continues to fail. I received the update software email and tried to install it, the attempt failed and my computer went back to try and install 25H2.

I have been on the insider program for a while, now each time i access the Windows insider screen under Windows update it promtps me to "Get Started", i run through the promtps, the computer restarts and when I return to the Windows Insider screen it prompts me to "get Started" again.

Windows Insider program | Windows Insider preview | Install, activate, and Windows update
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Answer accepted by question author
CrazyKats 19,420 Reputation points Volunteer Moderator
2026-08-08T16:09:06.5266667+00:00

Hi Barry,

My only suggestion right now is to switch to Dev

Channel and then try doing a Repair Install.

You need to be able to see Advanced Options

on the Insider page to be able to get back

to Experimental.

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  1. CrazyKats 19,420 Reputation points Volunteer Moderator
    2026-08-08T15:55:57.7333333+00:00

    Hi Barry,

    You can't keep switching Insider Channels

    because it confuses the System.

    Staying on Beta or Release will get you

    nowhere because those Channels are on

    build lower than what you're on.

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  2. Johnny55 5,155 Reputation points Volunteer Moderator
    2026-08-08T17:54:46.41+00:00

    Hello Barry,

    Did you proceed with the install of 25H2 when you were at this screen displaying Dev?

    Screenshot 2026-08-08 134938

    Please go to this page, you might have to sign in again with your Insider account and dl the ISO for 26300.

    https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewiso

    Right click on the ISO file and mount the image. Then run setup.exe from within Windows to do a Repair Install.

    Regards,

    Johnny

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