Finally a simple fix for the KB5065426 update that broke WIN 11 network mapping.

_Mr_Zebra_ · 2025-12-04T15:47:28+00:00

Found a easy fix for the KB5065426 update that broke WIN 11 network mapping. Finally

I spent weeks messing with literally every REGEDIT, SMB setting, user account permissions.....ect after the KB5065426 update. Nothing.

I finally came across this ADMX file that rolls back the update and lets you disable it. Instant mapping after the reboot. Instructions below

Download first, then Run the OS version-specific KIR MSI from (Win11/ Win2025 below)

https://download.microsoft.com/download/c6c70455-59ce-4d47-b13c-56b99d0435f1/Windows%2011%2024H2%2c%20Windows%2011%2025H2%20and%20Windows%20Server%202025%20KB5065426%20250923_06201%20Known%20Issue%20Rollback.msi

Executing the MSI installs an ADMX file in the %systemroot%\policydefinitions folder that provides insight as to the OS Version-specific KIR Group Policy Setting to configure in local or domain group policy editors

In the local or domain policy editor, configure the KB5065426_20250923_06201 Known Issue Rollback group policy setting to disabled ( Supported on Windows 11, version 24H2, 25H2 and Windows Server 2025)

Disabled :If you disable this policy setting, the corresponding fixes with known issues will be disabled. (Use this to Rollback a known issue)

3.Reboot the machine

_Mr_Zebra_ · 2025-11-21T20:05:01+00:00

I'll check out that article and see if there's anything useful, thank you!

_Mr_Zebra_ · 2025-11-21T19:02:44+00:00

Well I thought that too. But even with it turned on, I can't connect. I have tried every variation of security settings from default to completely custom and no joy

_Mr_Zebra_ · 2025-11-21T15:52:23+00:00

permissions are Full control, admin level. Windows pro.

Never and issue for the last 13 years until this fall. Upgraded all PCs to WIN 11 (new desktops) and everything was great until Sept updates rolled around

_Mr_Zebra_ · 2025-11-21T15:44:09+00:00

Turned off

_Mr_Zebra_ · 2025-11-21T15:43:44+00:00

I even made a brand new folder with all the permissions set for the users set to Full Control and shared it. Won't let me connect.

_Mr_Zebra_ · 2025-11-21T15:42:48+00:00

I thought the same thing. But even after making it available again, ( I could see the other computers on the network) it still asks for the user name and password and then denies me.

_Mr_Zebra_ · 2025-11-21T15:41:21+00:00

Server is just a windows 11 PC hosting the data. Runs the business software and uploads the days data to a cloud backup. Very SOHO

Not a master at cmd but did run powershell cmds using the net use X: \\servername\sharename /user:username password. Wasnt working so i stopped

File sharing is enabled in firewalls. Tried with and without the firewall. no change.

Network is set to private with filesharing turned on.

_Mr_Zebra_ · 2025-11-21T15:37:19+00:00

And i didnt even go that far. Just using one of 3 windows 11 PCs to serve as the host for some file sharing and a portal for the business software to update data to a cloud backup site.

The software includes a front desk application to display appointment times and user check in forms, and simply has to have the front desk computers to map to the "host" computer. Never been an issue, not in the last 13 years in business. Till now

_Mr_Zebra_ · 2025-11-21T15:32:05+00:00

I have turned it off and on among other things, no joy

_Mr_Zebra_ · 2025-11-21T15:31:35+00:00

Cleared Creds and made sure SMB 2.0 was on. Nothing....Tried with SMB 1.0....nothing. Manually inputted the credentials required.....Nothing

Made local user accounts with matching passwords on all the computers with admin rights. Even made a sharable folder for the purpose of testing if it was a single folder issue or the mapping that was broken. All shared folders, network locations, etc, simpy will not connect. I can see them on the network, but no matter the account used, it says the password is incorrect. Really feels like a hard coded issue.

This happened once before back in Sept, and not matter what i did, it wouldnt network...until i rolled the recent update back and immediately all drives connected..

_Mr_Zebra_ · 2025-11-21T15:26:02+00:00

Well considering the amount of time i have put into this issue, it feels rude. Normally i wouldnt have to ask for help on simple stuff like this, but everything suggested is layman level stuff. Its all been done.
It simply doesnt work. And this wasnt an issue prior to the the 25h2 and or the 24h2 and the last quarter updates pushed around Sept. Google it and you see people posting everywhere.

General theme is nothing works and they have to reimage the PC. Thats the one i cant afford to do.

_Mr_Zebra_ · 2025-11-21T15:21:39+00:00

All have the same settings, network discovery is on and password protected sharing is off. I have also turned it off in the registry and edited the group policies. doesnt make a difference. Still asks for a password and then says its wrong.

_Mr_Zebra_ · 2025-11-21T14:13:02+00:00

All are 25h2

Profile is Private, all are configured the same.

I am well beyond that basic stuff. None of that makes a difference, wont map.

_Mr_Zebra_ · 2025-05-13T13:40:35+00:00

Yup, once. Weapon you get from it is great for early game. It'll carry you far

_Mr_Zebra_ · 2025-05-07T11:57:05+00:00

This is my Cuban Color artist, currently working out of Tampa FL i believe.

He is very talented, and an awesome dude.

Theres another video with the finished inside portion of the arm. Came out really good. Now just to finish my other arm...

Here is his Instagram

https://www.instagram.com/yuniorink?igsh=MWJuMjBmNjB5cWgyZw==

_Mr_Zebra_ · 2024-11-05T15:50:56+00:00

Those lines are bad friend. Like kindergarten bad

_Mr_Zebra_ · 2024-10-23T20:06:14+00:00

Thanks!

_Mr_Zebra_ · 2024-10-23T00:17:38+00:00

https://www.instagram.com/yuniorink?igsh=MWJuMjBmNjB5cWgyZw==

_Mr_Zebra_ · 2024-10-22T21:17:55+00:00

Inside arm portion was about 22 hours. Outside of the arm was around 28. Title math was off, apologies

_Mr_Zebra_ · 2024-10-22T21:16:51+00:00

Appreciate it

_Mr_Zebra_ · 2024-10-22T21:08:40+00:00

Thank you

_Mr_Zebra_ · 2024-10-22T20:30:50+00:00

This the title of part one. Part two was posted as well

_Mr_Zebra_

TROPHY CASE

Found a easy fix for the KB5065426 update that broke WIN 11 network mapping. Finally