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Updates & Patching

'We couldn't complete the updates. Undoing changes'

After a reboot, Windows spends a long time rolling back an update with 'Undoing changes', then tries the same update again later.

What you’re seeing

  • During restart, a screen says 'We couldn't complete the updates. Undoing changes. Don't turn off your computer'.
  • The rollback takes a long time, sometimes over an hour, before Windows finally loads.
  • The same update appears again later and fails the same way.
  • The same update is listed as failed several times in the update history.

Common causes

Every environment is different, but these are the causes our engineers find most often:

  • The system reserved or EFI partition doesn't have enough free space for the update's boot changes.
  • The Windows component store is damaged, so part of the update can't be applied.
  • A device driver or low-level security tool is incompatible with the update and blocks it during the reboot phase.
  • A previous update installation was interrupted by a power loss or forced shutdown, leaving the system in an inconsistent state.
  • Third-party disk encryption or backup software holds files the update needs to replace.

Why it matters

Each failed attempt costs the user a long, unusable restart, often at the start of the day, and the cycle repeats until the cause is found. Meanwhile, the update and any security fixes in it remain uninstalled. In some cases, repeated rollbacks are a sign of a deeper system problem that can eventually stop Windows from starting at all, which would mean far more downtime than addressing it now.

How AskTechGurus fixes it

Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.

Tell us what’s happening

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A certified engineer diagnoses it

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Fixed and verified with you

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Pay only when it’s resolved

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Frequently asked questions

Is our data at risk when Windows undoes changes?

The rollback is designed to return Windows to its previous working state without touching your files. Still, repeated failures can point to a deeper problem, so it's worth resolving rather than tolerating.

Can we just hide the update so it stops trying?

Doing that would keep the PC without whatever fixes the update contains, often security ones. It's better to find out why it fails and get it installed.

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