This will take a while.” A “Restoring your previous version of Windows…” message appeared as Windows rolled back the update, and our PC booted and worked normally afterwards.In every test, turning off the computer didn’t cause any problems.
The update installation had failed, but Windows was still working properly. Second, we restarted our PC while the screen said “Working on updates, 27% complete, Don’t turn off your computer.” Windows restarted normally and we saw a message saying “We couldn’t complete the updates, Undoing changes, Don’t turn off your computer.” After the process was complete, Windows booted normally and everything worked as expected.
We also tested this process while installing a major Windows 10 update, going from the Fall Creators Update to the April 2018 Update.
If the percentage appears stuck on a particular number for a long time, the update process may be stuck.
However, it’s normal for Windows to appear “stuck” at a particular point for a long time before speeding through the rest of the installation process, so don’t be too impatient.
We recommend always having backups of your important personal files, just in case.
RELATED: Simply restarting your computer should fix the problem.This is true even when Windows is telling you not to turn off your computer. Warning: While we’ve successfully tested this process, there are no guarantees that your Windows operating system will work properly after you perform a hard shut down.To turn off your PC at this screen—whether it’s a desktop, laptop, tablet—just long-press the power button. However, if the update process is actually frozen, performing a hard shut down is the only thing you can do.Once again, we saw the “We couldn’t finish installing updates” notification.Finally, we tried restarting the PC when it said “Working on updates 48%, Don’t turn off your PC.However, if this message has appeared on your screen for a long time, you may need to restart your PC.