Windows 10: Windows 10 build 2004 issues with dnsapi.dll

Hello,


We have an issue possibly specific to a GPO in our environment that causes issues with the dnsapi.dll library in build 2004. The behavior that happens after a domain join computer is freshly imaged with 2004 or is updated from a previous version is that if there is any network connectivity, lsass.exe will spike all cores to 100% CPU usage while trying to call dnsapi.dll and it will use multiple threads to attempt to execute. I was able to determine this using Process Explorer for sysinternals. This is platform independent and happens on both our Dell's and Lenovo's. If any network device is connected, this will result in a forever spinning login screen. If the network devices are disabled and the user profile is logged into, then a network device wifi/ethernet is connected, services with privilege escalations will fail due to the high CPU usage. If network devices are then disconnected, then after a few minutes cores free up CPU.


As a partial fix, I have replaced both 32 and 64 bit dnsapi.dll's with a version from Windows 10 build 1903 and the issue with lsass goes away and I'm able to log in and have no issues with high CPU usage or privilege escalations. The side affect of an older dnsapi.dll is that I'm unable to browse network shares and receive the following error in event viewer: "The DNS Client service terminated with the following error: The specified procedure could not be found".


The unfortunate thing is I'm unable to get a Microsoft resource because our org is under 500 people and our licensing partner can not even get a resource assigned to investigate the issue. If we are having this issue in our environment, I'm sure others are running into this as well.


CU KB 4565503 from the July 13 update does not fix the issue.

:)

 

Windows 10 Build 2004 Issues

Hi Everyone,

I've updated my Windows 10 to Build 2004 yesterday & encountered some issues till now:

1. Windows crashes & Blue Screen shows up once cam is turned on Skype or other App.
2. Power Saver doesn't turn on when selecting from Side Bar, I've to press Battery Icon & select suitable Power Mode.

I did a Fresh Installation for same Build, yet issues still exist.

My Laptop is HP EliteBook Folio 9470m & I'm using latest Windows Update.

Thanks in advance for your support.

Muhammad Gamal

 

Win 10 2004 update No AMD graphics

Before upgrading anything else to 2004, I would suggest checking out the current Known Issues list.

There are several -

https://docs.microsoft.com/en-us/win...indows-10-2004

 

d3d11.dll Issue

Hello,

I was trying to run an program on Windows 10, and it's giving me an error: "Could not load d3d11.dll".

Troubleshooting steps I have taken so far:

• Installed the latest version of Microsoft DirextX - downloaded from Microsoft website
• Installed all the updates from Windows update
• Check the path C:\\Windows\\system32\\ - the file is there
• updated graphic's driver - from Intel website
  • reinstalled the driver
• reinstalled the software that was giving the error.

but the issue is still not fixed