Problem after update

Hi EricYL.

Thanks for your reply. I'm sorry to hear that the problem seems to have gotten worse after you tried the in-place upgrade and clean boot.

We have determined that this is most likely a serious file error or missing files on the system and we can only recover by reinstalling the system. Please refer to the following steps

1 Take out your hard disk from your computer and plug it into another computer, make a backup of the data inside, after the backup, format it and plug it back into your computer.

2 Use a USB drive to make a system installation media, plug it into your computer, then boot up your computer, and under the guidance of the motherboard manual or device manufacturer, enter the BIOS setup page, set the system installation media (USB drive) made earlier as the boot device, and reinstall the system in this way.

For details, please refer to the following link

How to: Perform a Custom Installation of Windows 11 and Windows 10 or - Microsoft Community

Disclaimer: At this point, we have exhausted all troubleshooting and I recommend that we try to perform a clean install to get your computer back into a working condition. Please ensure that you backup any important data, including Documents, Pictures, Videos, and more.

Thank you for your understanding and support.

Best regards,

Zev - MSFT | Microsoft Community Support Specialist

Forgot what it was, but the default app for .iso was not Explorer. Fixed it and ran the upgrade.

Currently in clean boot mode. Now my account displays the same horror as the main one did previously, and the main one is purely black.

In-place upgrade: I have downloaded the ISO, but there is no "Mount" option anywhere

Hi EricYL.

Thanks for your reply. I checked your private message and the blue screen log in it. I understand that your computer seems to have blue screen and other problems due to an AppXDeploymentClient.dll error that triggered an exception in svchost.exe.

We determine that there may be some missing or corrupted files in your system at the moment.

Please do the in-place upgrade I replied to earlier in your normal administrator account and fix it that way.

Then please refer to the following link to perform a clean boot

How to perform a clean boot in Windows - Microsoft Support

After the clean boot, please try the clean boot again in the account where the problem occurred

Disclaimer: A “clean boot” starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background service is interfering with your game or program and to isolate the cause of a problem.  

These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by step so that it will help you get back on track.

Check to see if any issues arise after this.

Thank you for your understanding and support.

Best regards,

Zev - MSFT | Microsoft Community Support Specialist

Zev

Tried sysdm.cpl from admin account, the only recent .dmp are in users[user]\appdata\local\crashdumps and are named explorer.exe.[…].dmp.

Any way I can generate a useful dump?

EricYL