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0x800703ee error upgrading to Windows 11

Anonymous
2025-06-18T05:29:59+00:00

Whether I use Windows Update or the Application Assistant, I get this same error.
Error message:
There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x800703ee)

  • Antivirus and external drives disabled
  • Chkdsk returns no errors
  • There's plenty of space on C drive as well as in the EFI partititon
  • C drive has been cleaned up
  • All drivers have been updated
  • All Windows 11 requirements have been met

I'm not sure what else to try.

Windows for home | Windows 10 | Install and upgrade

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  1. Ramesh 176.2K Reputation points Volunteer Moderator
    2025-06-20T10:10:58+00:00

    Please run:

    diskpart

    select disk 2

    list part

    select part 2 -- This selects the EFI partition

    Image

    del part override

    create partition efi

    format fs=fat32 quick

    assign letter=Y

    list vol

    exit

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  1. Anonymous
    2025-06-20T20:32:54+00:00

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  2. Anonymous
    2025-06-18T07:41:48+00:00
    1. I did DISM and scannow and no issues there.

    1. I tried to do another upgrade to Windows 11 and it failed.
    2. Here's the link to setupact.log

    https://drive.google.com/file/d/12vHhXJO4jy8rOXVm7KnRpQKiOGjhEuCG/view?usp=drive_link 4) Here's the link to setuperr.log

    https://drive.google.com/file/d/1tlMApU-qeb6n6O45lMe2spTZCuuyfgWC/view?usp=drive_link

    System Summary:
    Image

    Image

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  3. Ramesh 176.2K Reputation points Volunteer Moderator
    2025-06-18T06:11:58+00:00
    1. Please run msinfo32.exe, and click System Summary. Resize the columns in the right pane to make the entries visible, and post a screenshot of that screen.
    2. Open admin Command Prompt and run:

    reagentc /info

    dir c:\windows\system32\recovery /a

    bcdedit

    diskpart

    list disk

    select disk 0

    list part

    list vol

    exit

    Post the output.

    1. Share the following setup log file on OneDrive (or any other host) and post the link here:

    C:$WINDOWS.~BT\Sources\Panther\setupact.log

    Note: "C:$WINDOWS.~BT" is a hidden folder. To access it, press Win + R, type "C:$WINDOWS.~BT" and click OK.

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  4. Anonymous
    2025-06-18T06:03:30+00:00

    Hi, I'm Ric, an independent advisor. I'm sorry you're experiencing this issue.

    The 0x800703ee error typically points to file corruption or interference from third-party software, even if antivirus is disabled.

    Please try these steps:

    1. Run DISM and SFC Tools to repair system files:

    DISM /Online /Cleanup-Image /RestoreHealth

    sfc /scannow

    Learn more here https://support.microsoft.com/en-us/topic/use-t...

    1. Perform an In-place Upgrade using the Windows 11 ISO – run the setup file and choose Keep personal files and apps. This often bypasses upgrade errors.

    https://www.microsoft.com/en-us/software-downlo...

    1. Check Windows Update Components – reset them using this guide:

    https://support.microsoft.com/en-us/windows/tro...

    If none of these work, try checking C:$WINDOWS.~BT\Sources\Panther\setuperr.log for detailed failure reasons.

    Hope this helps, otherwise, I would be happy to assist you further.

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