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.

Failed C drive removed, SSD drive installed. I cloned C to the SSD. The SSD doesn't show any errors anywhere. The new SSD C drive does boot up and operate fine. When I try to upgrade to Windows 11, I still get the error message that Windows can't figure out if there's enough space.

If you manage to clone the disk to the other disk and be able to boot from the new disk, then we should be able to upgrade to Windows 11 after following some troubleshooting steps. Let me know how the cloning went.

I used EaseUS Partition Manager on the C drive and I noticed the "Caution" message regarding the C drive. These are the errors. The drive is failing. If I use the Clone/Migrate OS feature inside this app to clone to a different 8TB hard drive that I know is good based on what Partition Manager is currently showing as, will these errors matter in the clone process? Also, once on a good, working drive, do you think the Windows 11 upgrade will work without issue?

No. The disk has gone bad, as you can see in the following image.

0x800703ee error upgrading to Windows 11

Anonymous

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.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Answer accepted by question author

Ramesh 181.9K Volunteer Moderator

Please run:

diskpart

select disk 2

list part

select part 2 -- This selects the EFI partition

del part override

create partition efi

format fs=fat32 quick

assign letter=Y

list vol

exit

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47 additional answers

Anonymous

2025-06-20T05:09:52+00:00

Failed C drive removed, SSD drive installed. I cloned C to the SSD. The SSD doesn't show any errors anywhere. The new SSD C drive does boot up and operate fine. When I try to upgrade to Windows 11, I still get the error message that Windows can't figure out if there's enough space.
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Ramesh 181.9K Reputation points Volunteer Moderator

2025-06-19T05:14:24+00:00

If you manage to clone the disk to the other disk and be able to boot from the new disk, then we should be able to upgrade to Windows 11 after following some troubleshooting steps. Let me know how the cloning went.
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Anonymous

2025-06-19T04:29:54+00:00

I used EaseUS Partition Manager on the C drive and I noticed the "Caution" message regarding the C drive. These are the errors. The drive is failing. If I use the Clone/Migrate OS feature inside this app to clone to a different 8TB hard drive that I know is good based on what Partition Manager is currently showing as, will these errors matter in the clone process?

Also, once on a good, working drive, do you think the Windows 11 upgrade will work without issue?
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Ramesh 181.9K Reputation points Volunteer Moderator

2025-06-19T02:00:02+00:00

No. The disk has gone bad, as you can see in the following image.
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