"We Couldn't Complete the Updates / Undoing Changes" — How to Break the Loop

You restart and Windows hangs on:

“We couldn’t complete the updates. Undoing changes. Don’t turn off your computer.”

What’s happening: an update failed to install, so Windows is rolling itself back to the last working state to protect your PC. That rollback is normal and protective — the danger is interrupting it. Most of the time the right first move is to wait. If it’s truly stuck or looping every boot, here’s how to break out without losing data.

Step 1: Allow rollback time to finish

A rollback can take a long time on a slow disk or after a large update. Keep the PC on power and allow it to finish when progress is still occurring. An animation by itself does not prove disk activity, and an exact number of minutes cannot establish that it is frozen.

Step 2: Handle an unresponsive PC cautiously

If there has been no meaningful progress for an extended period and recovery options are inaccessible, a forced power-off may be necessary as a last resort. It is not a clean restart and can interrupt writes. Avoid repeatedly forcing it off while the update/rollback is active. If it boots after restarting, save and back up important files before further troubleshooting. If it returns to the same failure, use recovery tools below.

Step 3: Enter Windows Recovery when Windows cannot boot

Keep your BitLocker recovery key accessible outside the PC. Prefer an available recovery entry or official Windows installation/recovery USB. If the PC cannot reach any recovery screen, Microsoft’s interrupted-startup recovery procedure is a last resort; interrupting an update or disk write carries risk, so do not repeatedly power it off while progress is still occurring.

In WinRE → Troubleshoot → Advanced options, use the available recovery tools. Startup Settings → Restart can offer Safe Mode, but Safe Mode and WinRE are different environments.

Step 4: Remove the failing update or use recovery tools

In WinRE → Advanced options → Uninstall Updates, try Uninstall latest quality update when the failure began with that update. Feature-update rollback has availability/time limits. If uninstalling is unavailable or fails, try an appropriate restore point through System Restore or Startup Repair and use Microsoft’s recovery guidance.

If you can boot the installed Windows session, its update-history controls may also allow uninstalling the identified update. Do not remove an arbitrary package solely because it is newest. Back up accessible data before further recovery operations.

Step 5: Reset the update cache after Windows boots

Only after you can boot the installed Windows session, open Command Prompt as administrator. These commands are not a WinRE repair: %systemroot% in WinRE refers to the recovery environment, not necessarily your installed Windows folder.

Save work and check each service stops before renaming its cache. If a stop/rename fails or a .old folder already exists, inspect the error and preserve existing backups rather than deleting them or continuing blindly.

net stop wuauserv
net stop bits
net stop cryptsvc
ren %systemroot%\SoftwareDistribution SoftwareDistribution.old
ren %systemroot%\System32\catroot2 catroot2.old
net start wuauserv
net start bits
net start cryptsvc

Restart stopped services when finished, save work and restart Windows. The updater can recreate these caches; resetting them does not diagnose every rollback cause.

Step 6: Repair system files

Still failing after the installed Windows session boots? Repair its component store, then system files in Command Prompt as administrator. /Online targets the currently running OS; it is not an offline repair of the Windows installation from WinRE:

DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow

Run DISM first, then sfc. Reboot and try Windows Update again.

Step 7: Run the official troubleshooter & pause updates

1. Open the Get Help app → search “Windows Update troubleshooter” → run it (it resets update services automatically).
2. Settings → Windows Update → Pause updates for a week so you’re not forced back into the loop.
3. Make sure you have enough free disk space (10+ GB) — a full drive is a common cause of failed feature updates.
4. If one specific update keeps failing, download it manually from the Microsoft Update Catalog and install it directly.

FAQ

Will I lose my files? Update rollback is intended to undo the update, but a failed disk, interrupted write or subsequent recovery operation can still threaten data. Back up accessible personal files before further repairs; no recovery guide can guarantee they are intact.

How long is too long? There is no universal cutoff; disk speed and the update matter. Observe meaningful progress and consult recovery guidance before deciding a forced shutdown is necessary.

It loops on every restart. That’s a failed update reinstalling each boot — uninstall it (Step 4) and clear the cache (Step 5). Then pause updates before it tries again.

Could it be related to other update woes? If updates also break networking afterward, check Wi-Fi connected but no internet — Windows updates sometimes reset network settings.

Sources: Microsoft Learn — DISM Online versus offline Image, Microsoft Learn — Update cache service prerequisites, Microsoft — Troubleshoot problems updating Windows, Microsoft — Windows Update Troubleshooter, Microsoft — Get help with Windows upgrade and installation errors