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DavidLessard-8894 avatar image
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DavidLessard-8894 asked Tunng-7322 answered

New Windows 10 May patchs problems

Hello,

This morning the new Windows 10 May patch was installed. The new KB5003173 cause mapped drive to show but not be accessible after reboot. The sharing mapped drives I'm talking about are those using SMB 1.0 that you have to be enable using this PowerShell command:

Enable-WindowsOptionalFeature -Online -FeatureName "SMB1Protocol" -All

I also notice that SKYPE connection is not working very well (freezing video and audio) even after removing patch KB5003173 in the May patches. I can't remove the servicing stack recently installed or patch KB5001391 to see which one is causing me the trouble.

It's worth more investigation from my part but something is not right because everything was ok before those patchs installation.

Thank you for your support.

windows-10-network
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I also have this issue with a shared folder. I cannot access the network share at all until this update is uninstalled.

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SunnyQi-MSFT avatar image
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SunnyQi-MSFT answered

Hi,

Glad to hear that our issue has been resolved successfully.

You could accept the useful reply as answer if you want to end this thread up. If there is anything else we can do for you, please feel free to post in the forum.

Best Regards,
Sunny


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SunnyQi-MSFT avatar image
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SunnyQi-MSFT answered

Hi,

Thanks for posting in Q&A platform.

May I know if uninstall KB5003137, will we access the mapped drive successfully?

Or you may try enable SMB 1 by running the following command in PowerShell with Admin privilege.

Get-WindowsOptionalFeature -Online -FeatureName smb1protocol

Please understand that our network forum doesn't focus on skype related issue, I would suggest you could post a new thread in the following forum with tag office-skype-business-online-itpro. Then you will get further help form Skype support engineer.

https://docs.microsoft.com/en-us/answers/topics/office-skype-business-online-itpro.html

Best Regards,
Sunny


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DavidLessard-8894 avatar image
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DavidLessard-8894 answered

Yes, by removing the patch KB5003137 it solved everything for the mapped drives. I have before try executing the PowerShell command, with the new patch installed, but it didn't change anything. It reported active for the SMB 1.0 but the mapped drives wasn't accessible. It's the patch the problem. Everything works fine before the May patches.

The two other patchs installed in May can't be uninstalled (Service Stack and another KB that I don't remember). The only way to remove them is by a restore points because I try to uninstall them and see if this also solve my SKYPE problems of freezing audio-video that was also fine before May patches. Thank you for the link for Skype problems by the way. It was just a remark on my part about SKYPE.

Thank you for the support.

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RalWil-9796 avatar image
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RalWil-9796 answered Tunng-7322 commented

I don't know if it is related but I am too having problems connecting to a network share with Windows 10.

After the installation of KB5003173 I cannot connect to a QNAP NAS by typing \\NasName in the explorer address bar.

Normally it would show me the shared folders of the NAS, which does not require credentials, but now I get the error message "Windows can't find \\NasName. Check the spelling and try again.". Meanwhile the NAS shows quite a lot of failed login attempts per connect try with my Windows username as user, IP and the error message "Failed to log in". The NAS requires a different username and password. The QNAP NAS is running QTS 4.5.2.1594 from March this year.

Under "Turn Windows features on or off" "SMB 1.0/CIFS file Sharing Support" is disabled but turning it on does not resolve the problem. I also don't think the NAS is a legacy device yet.

Uninstalling KB5003173 resolves the problem but I would like to have an up to date Windows system.

Best

RalWil

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RalWil-9796 avatar image
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RalWil-9796 answered

Wireshark and Google led to this:

guest-access-in-smb2-is-disabled-by-default

Changing the group policy as described in this article solved the Problem for me, I am running some Windows 10 Pro and Enterprise machines so I was affected.

@DavidLessard-8894 Does your connection process to the SMB share at some point uses the guest account and are you running an affected Windows Version by chance ?

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DavidLessard-8894 avatar image
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DavidLessard-8894 answered

My home network is composed of Windows 10 Home edition so no group policies available, only local.

I never touch the SMB2 protocol for the settings, only SMB1 so I could see and access my NAS over the network. If they change recently the SMB2 protocol for security, I will need to reactivate Windows patch on hold, install the patch again and make the changes in the registry to see if it correct my problem.


I will keep you informed of the results.


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DavidLessard-8894 avatar image
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DavidLessard-8894 answered

Update:

I reactivate Windows patch, reinstall KB5003173 and everything works without any changes in registry or else afterwards. Microsoft probably change something in the patch between my initial post and now.

I will install the new update for version 21H1 and check if it works.

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DavidLessard-8894 avatar image
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DavidLessard-8894 answered Tunng-7322 commented

Just installed 21H1 and everything still works for the sharing NAS, so I guess problem solved.

Thank you all.

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You're lucky ! My machine is still the same, I can't find to uninstall KB5003173, I have to recover, it's so annoying!99640-screenshot-2021-05-26-153227.jpg99770-screenshot-2021-05-26-153442.jpg99737-screenshot-2021-05-26-163958.jpg


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Tunng-7322 avatar image
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Tunng-7322 answered

I recovered win 10 before installing the update, removed KB5003173, my computer was able to access the drives in the shared network in the same network. Then I turned off the automatic update of windows 10 and tried to manually install the update KB5003214, it was the same as before, could not see the shared drives in the same network. Just take it off!
Does anyone have the same device as mine?

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