Can not download preview iso for release 26H2.

Question

Can not download preview iso for release 26H2.

Used_Water 0

I have been directed here for further guidance by support.

I have these message codes 715-123130 and 5513cf4c-0945-4d74-bc69-4840cf515f1a.

Thank you kindly

0 comments

4 answers

Your answer

Answer 1

CrazyKats 19,925 Volunteer Moderator

Hi,

You are on a really old build.

I would go here: https://www.microsoft.com/en-us/software-download/windows11

Download the Iso, mount the ISO and

open the folder and run Setup from

there and do an in place update.

0 comments

Answer 2

Used_Water 0

I am not behind a VPN or spoofing my DNS and using my actual public IP.

0 comments

Answer 3

CrazyKats 19,925 Volunteer Moderator

Hi,

Exactly what build are you on currently?

Use WIN+R, type winver for the build #.

Used_Water 0 Reputation points

2026-09-30T13:09:36.2233333+00:00

W11 23H2
Used_Water 0 Reputation points

2026-09-30T13:10:54.83+00:00

(OS Build 22631.6199)

Answer 4

Error 715-123130 is triggered when the ISO download request is rejected because the connection appears to come from a blocked geography or from a VPN, proxy, anonymizer, or other location-masking service.

For a Windows Insider Preview ISO download, use this checklist first:

Confirm the Microsoft account signed in on the download page is the same account enrolled in the Windows Insider Program.
Disable any VPN, proxy, privacy relay, or browser extension that masks location.
If on a corporate or filtered network, verify outbound traffic is not being routed through a location-masking gateway.
Try a different network, such as a mobile hotspot, to rule out an IP or region validation issue.
Clear browser cache and cookies for Microsoft sites, or try an InPrivate/Incognito window or a different browser.

If the issue continues, this is enforced server-side and cannot be fixed through a local setting or registry change. The next step is to contact Microsoft Support and provide both the message code 715-123130 and the transaction ID 5513cf4c-0945-4d74-bc69-4840cf515f1a so the IP range or request can be validated.

As a workaround for standard Windows ISO downloads, Microsoft Q&A answers also recommend using the Media Creation Tool to create an ISO instead of downloading the ISO directly. However, for a Windows Insider Preview ISO, the supported guidance in the available material is to verify the Insider account and connection conditions, then escalate to Microsoft Support if it still fails.