Hi,
Try using this link:
https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewiso
Download this ISO, double click the folder
and run Setup for an in place update.
How do I get back to my regular version of Windows? My security update keeps failing.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(134.4, 84%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJL%3C/text%3E%3C/svg%3E)
Jamal Love
0
Reputation points
2026-09 Security Update (KB5129195) (26300.9457)
Some update files are missing or have problems. We'll try to download the update again later. Error code: (0x80073712)
Edition Windows 11 Home Insider Preview
Version 25H2
Installed on 5/28/2026
Evaluation expires on 8/11/2026 1:09 PM
OS build 26300.7965
Experience Windows Feature Experience Pack 1000.26100.343.0
Windows Insider program | Windows Insider preview | Repair and recovery
1 answer
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CrazyKats 19,595 Reputation points Volunteer Moderator2026-09-18T02:34:09.41+00:00