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Likely fix

Fix: Windows says undoing changes after update

Undoing changes means Windows tried to install an update but failed and is rolling back to the previous state.

Quick answer

Let Windows finish undoing changes, then free disk space, restart, and check update history before trying again.

Important warning

If undoing changes repeats every time, stop retrying the same update until you check disk space, drivers, and the update error code.

Try this

  1. 1 Wait for Windows to finish undoing changes.
  2. 2 Do not force shutdown unless it is stuck for hours.
  3. 3 After Windows starts, open Windows Update history.
  4. 4 Note the failed update code if shown.
  5. 5 Free up disk space.
  6. 6 Disconnect unnecessary USB devices.
  7. 7 Restart the PC.
  8. 8 Run Windows Update troubleshooter.
  9. 9 Try the update again.

Common causes

Update failed to install.

Low disk space.

Driver conflict.

Corrupted update files.

External device conflict.

Windows system file problem.

What to check next

  • Check update history.
  • Check error code.
  • Check free disk space.
  • Check external devices.
  • Check whether the same update fails repeatedly.

FAQ

What does undoing changes mean?

It means Windows could not install the update and is rolling back to the previous working state.

Should I wait while Windows undoes changes?

Yes. Let it finish unless it is stuck for hours.

Why does Windows keep undoing updates?

The update may be failing because of low disk space, driver conflicts, corrupted update files, or system file problems.

Related fixes

Fix: Windows Update installing is stuck

Windows Update installation can look stuck while it is still working, especially on older PCs, slow drives, or large feature updates.

Fix: Windows Update downloading is stuck

Windows Update downloads can appear stuck because the connection is slow, update servers are busy, the update cache is broken, or Windows Update services are frozen.

Fix: Windows stuck on getting Windows ready or restarting

Windows can stay on Getting Windows ready or Restarting while finishing update tasks, but it can also get stuck because of update failure or disk problems.

Fix: Windows Update keeps failing

Repeated Windows Update failures usually come from low disk space, corrupted update cache, driver conflicts, pending restarts, damaged system files, or unsupported hardware.

Fix: Windows is slow after update

Windows can be slow after an update because it is finishing background tasks, rebuilding indexes, installing drivers, scanning files, or waiting for another restart.