KB5065426 update stops file and print sharing from working

Kevin OBrien 205 Reputation points
2025-09-10T16:09:06.4466667+00:00

I was having issues with multiple locations using windows file and print sharing with password sharing. I found windows update KB5065426 was installed and that my file and print sharing options were turned off. I also found that networks were set to public that had previously sent to private.

Even after setting the settings back, the computers would not working with file and print sharing and I had to uninstall the update to get the functionality to work.

Windows for home | Windows 11 | Windows update

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  1. LOUIS LOPEZ 25 Reputation points
    2025-09-16T04:12:12.3466667+00:00

    Message: My password is incorrect. - I call horse hockey.

    I had three computers with matching SIDs because they were cloned by the manufacturer.

    They were able to map drives to each other and RDP to each other and they all have Windows 11 Pro.

    A few updates from Microsoft broke that connection.

    Those updates were KB5065426 and KB5064401.

    They moved my network from Private to Public and disabled File and Print Sharing and network discovery without my permission.

    I moved them back to Private and enabled the File and Print and discovery.

    That did not work. I removed those KBs at 3:00am and that solved the problem. At 8:00am the same day a few hours later, those KBs came back. I removed them again, and checked File and Print and Public/Private. This time, it did not work. I tried to reinstall KB5065426 and then hope to remove it. It was not listed in updates and also it would not let me install it because it stated that it was already installed. I attempted to powershell remove the KB5065426 with the following command.

    wusa /uninstall /kb:5065426

    The error message showed Security Update for Microsoft Windows (KB5065426) is required by your computer and cannot be uninstalled.

    I tried stepping back to SMB 1.0 and match all LMs.

    SMB 1.0 Server are on all machines and matching

    SMB 1.0 Client are on all machines and matching

    LmCompatibilityLevel 1 on all machines

    RequireSecuritySignature Workstation and Server disabled on all machines

    AllowInsecureGuestAuth on set on all machines

    EnableLinkedConnections on all machines

    Removing stored credentials did not work

    Using alternate credentials did not work

    Tried new matching accounts created on all machines did not work

    Changing the firewall to default policy and created an allow all in and out rule did not work on all machines

    PsGetsi64.exe confirmed the SID matches

    The identical SIDs can communicate File and Print and RDP to all non-matching SIDs and all non-matching SIDs can communicate with each other and back to the identical SIDs. Only the matching SIDs CANNOT communicate with each other using File and Print and also CANNOT communicate using RDP. The error message is the password is incorrect and they password and usernames are perfectly matching no matter what account I use or alternate credentials. They just will not communicate.

    sysprep killed one computer to the point I couldn't install windows on that hardware without moving the SSD to a new piece of hardware and installing Windows and then moving the SSD back to that machine. The other machine I installed Windows Clean and instead of creating a windows.old folder, it wiped out all data including folders in the root directory. All three SIDs are unique and can communicate with each other again. I am pretty sure the Stratesave Systems SIDCHG would work because others stated it would. This used to be owned by Microsoft was was sold off to them (I think). What do I know. I am just a dummy that can't get two computers to communicate peer-to-peer.

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  3. Wolfgang Aust 5 Reputation points
    2025-09-16T15:09:51.6533333+00:00

    Problem solved:

    1. Determine the SID on the computers using Sysinternals\PsGetsid64.exe (Sysinternals\newsid.exe doesn't work under Win11 24H2).
    2. Change the SID on one of the computers with a duplicate SID (without sysprep) using SIDCHG: (stratesave.com - follow the instructions carefully!)
    3. Everything's fine again . Researching the network error 0x80004005 almost drove me to despair.

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  4. Eduardo 0 Reputation points
    2025-09-16T17:09:21.3866667+00:00

    Sinceramente esto está muy interesante para personas con ivel TI pero para los pobres usuarios agenos a estas medidas, nos quedamos bloqueados sin poder dar una solución que sea más viable a este problema.

    No es normal que Microsoft haya bloqueado estos accesos y rogamos a MICROSOFT faciliten otra actualización válida que solucione este problema para poder compartir archivos e impresoras entre los PC dentro de una red privada.

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  5. Klaus 5 Reputation points
    2025-09-16T18:34:54.01+00:00

    I don't know if this will be helpful, but...

    The problem as shown in the title appeared on 4 of my computers in geographically very distant local networks. Now it seems to be that I do have a solution.

    1. I checked my computers with 'sfc /scannow' and 'dism / online /cleanup-image /restorehealth' and found that the computers having the problem reported heavy bugs in health. The named programs repair such. --- and: very important: they have had the bugs KB5065426 was installed!!!
    2. After repair I removed KB5065426 and reinstalled it on the now healthy system.

    Success... (for at least now one main computer.) --- Tomorrow I will try to get it running on a second one.

    I hope that this might be a way to solve the mal-function of KB5065426.

    Greetings

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