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08-29-2018

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Windows 10 2004 issues

2020-06-17, 16:42 PM

I had tried to update my laptop in our enterprise from Windows 10 1903 to Windows 10 2004.  After installing the update the laptop hung on "Please Wait..." indefinitely.  I recently built a new image for our enterprise that would install Windows 10 2004 fresh after having issues with the update.  Even after a fresh build, there are still issues and here's what I was able to determine:

 

The X1 Carbon (6th Gen) has both Intel based network adapters for Wi-Fi/wired.  The computer will boot up and log in if there is no established network connection prior to the login.  The strange issue that arises is if you are still disconnected from either network, you can run elevated applications as administrator through UAC.  If, however, you establish a network connection via Wi-Fi or wired and attempt to do any privilege escalation, after confirming the dialog it will not bring you back to the desktop and will not elevate via UAC.  If you leave the laptop network connected, it will stay indefinitely.  If you unplug the network while still "stuck", it will eventually time out and bring you to your desktop.  This in turn causes our VPN client not to connect as it cannot read X.509 certificates.

 

I'm wondering if anyone else with a 6th Gen X1 Carbon has run into this issue?  All drivers have been updated through Lenovo's system update utility.

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136 Posts

12-01-2019

CL

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Re:Windows 10 2004 issues

2020-06-17, 18:52 PM

This update is known to have several issues. Maybe Microsoft should pull the update.

 

I will not update yet.

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3653 Posts

12-02-2007

US

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Re:Windows 10 2004 issues

2020-06-18, 10:20 AM

Hello,

 

Microsoft is throttling the release of the Windows 10 Version 2004 upgrade, as well as issuing "soft blocks" to prevent Windows Update from installing it on computers that have hardware drivers or software known to be incompatible with it.  That said, if you download the Windows 10 installation media from Microsoft's site and make a DVD or USB flash drive to install it, the blocks will all be bypassed and Windows 10 Version 2004 installed.

 

I realize the desire to have all the installed software on your computer up to date and as current as possible, however, given the types of issues experienced with Windows 10 Version 2004, it may be better to wait until it is proffered through the Windows Update service.

 

For the latest known issues with Windows 10 Version 2004, as well as their resolution status, see https://docs.microsoft.com/en-us/windows/release-information/status-windows-10-2004.

 

Regards,

 

Aryeh Goretsky

 



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3 Posts

08-29-2018

US

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Re:Windows 10 2004 issues

2020-06-30, 22:07 PM

I'd like to report back my findings and provide an update to the issue.  This issue is more related to some domain setting that we have as the issue only surfaces when the PC is upgraded (already domain joined) or it has a fresh 2004 build and then domain joined.

 

In case anyone runs into this in their environment, this is what I figured out to fix the issue:

 

Using Process Explorer, I determined that the issued stemmed from "lsass.exe" which would do a call to "DNSAPI.dll".  It would spin up multiple threads that would stay open to this call and will spike every core to 100% usage.  I took a copy of the DNSAPI.dll from a working 1903 build and replaced it on the 2004 build.  Since I have done that, I have not had any issues with "NETLOGON" based process and am able to run consent.exe (privilege escalation) and network without issue.

 

Hopefully this helps someone if they have similar issues in their enterprise.  I will be taking my findings to Microsoft to have them fix the issue with the 2004 build of DNSAPI.dll.

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3 Posts

08-29-2018

US

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  • Message 5 of 5

Re:Windows 10 2004 issues

2020-07-02, 21:25 PM

In addition to the above, we still had issues with DNAPI.dll causing high CPU usage from other programs (such as NiniteAgent.exe) making calls to this DLL in the C:\Windows\SysWOW64 folder.  I have replaced that DLL with the one from build 1903 as well, now the fans have quieted down and CPU usage is stable.

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