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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Ramesh 181.9K 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. Ramesh 181.9K Reputation points Volunteer Moderator
    2025-06-20T15:48:06+00:00

    I think the Y drive letter is lost because you probably closed WinRE (instead of just exiting diskpart) and opened it again.

    Run diskpart → list vol to verify the drive letters. Assign the necessary drive letters and run the command again.

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  2. Anonymous
    2025-06-20T15:41:15+00:00

    It gave me an error.

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  3. Ramesh 181.9K Reputation points Volunteer Moderator
    2025-06-20T15:31:09+00:00

    Exit diskpart and then run that command in WinRE Command Prompt.

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  4. Anonymous
    2025-06-20T15:27:28+00:00

    Should I exit diskpart or run that from diskpart on WinRE Command Prompt?

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