Windows Server 2022 to Windows Server 2025 in-place upgrade fails at cc 90%

Question

Hi, does anyone have experience with in-place upgrade of Windows Server 2022 to Windows Server 2025? I have given it a try in test environment a few times without success - after cc 90% server got turned off.

Answer 1

Hello

Thank you for posting in Q&A forum.
Please try the suggestions below:

1.Review the setup logs to identify where the process is failing. The logs can be found in the C:$WINDOWS.~BT\Sources\Panther directory.

2.If the in-place upgrade continues to fail, you might consider performing a clean install of Windows Server 2025. While this requires reinstalling applications and reconfiguring settings, it can sometimes be more reliable

Reference:

Windows Server 2025: The upgrade and update experience | Microsoft Community Hub

I hope the information above is helpful.

If you have any questions or concerns, please feel free to let us know.

Best Regards,

Daisy Zhou

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Answer 2

Since server gets turned off and cannot boot, I have to use bootable tool such as DaRT to access this folder which I did. Just to see how to copy logs for easier log review.

Answer 3

Is something here that could help me out?

setuperr.log