Hi JoyQiao-MSFT ,
Thank you for help.
**Firstly - problem is solved. How ? See below.
Secondly - I will answer your questions. See below
How problem was solved ?**
Actually we only wait. Problem was with CONEXANT audio drivers. When new drivers for CONEXANT audio was installed, upgrade win version 2004 was successfull.
Answer to your questions:
Do you mean you perform upgrade to Windows 10 version 2004, right? - Yes.
I noticed the issue occur on some of computers not all devices, does all of them have same hardware model? Or only issue occur on specific model?- No. Issue was on different type of hardware model. Some of them was also virtuals machines and some of them laptops. Only different things was installed software.
By the way, you said you put driver sample here, are they developed by your company? - No.
Sorry for wrong settings with the link.
Best regards
Jan