Never Cut the Power While Windows Is Installing an Update
There are two completely different ways a PC can power off around an update, and confusing them is expensive. The CMD command in the video is an orderly shutdown that skips the install step. Holding the power button during an install that has already started is an interruption — and it can leave Windows unable to boot.
✍️ Technical Anshu🪟 Windows 10 / 11⏱️ 4 minute read
🎥 Watch the full video — the missing shutdown option fixed live with CMD, step by step
The screen that matters says Working on updates — do not turn off your computer. At that moment Windows is swapping live system files. This page explains what it is doing, why the plug is dangerous exactly then, and the one question that decides everything: has installation actually started, or is it still only pending? Pending is safe to postpone. Started must be allowed to finish.
The blue update screen — read it literally
Working on updates 37% Do not turn off your computer
What is happeningSystem files being replaced
Disk activity lightStill blinking means still working
Power button holdInterrupts mid-write
The installing screen is the one red line in this whole topic — if you are looking at it, the only correct action is patience (illustration)
1
What Windows Is Doing Behind That Percentage
During installation, Windows is performing surgery on itself: replacing driver files, rewriting parts of the component store, updating the registry, sometimes changing boot files — then verifying the result. The percentage is the progress of that file operation, not a timer you can negotiate with.
Cut the power in the middle and the operation stops wherever it happened to be: a file half-replaced, a registry change half-applied, a boot configuration pointing at something that is not finished. Modern Windows is genuinely good at recovering from this — it rolls back the update on the next boot — but recovery is a safety net, not a guarantee, and repeated interruptions during feature updates are a classic route to a PC that loops or will not start.
2
Why the CMD Trick Is Not the Same Thing
People worry that shutdown /s /f from the video is also cutting power during an update. It is not, and the difference is timing:
The CMD command runs while you are still at the desktop and the update is only pending. Nothing is mid-write. Windows hears an orderly instruction, closes everything properly, and simply skips the install step for this shutdown.
The power button or plug during the blue installing screen interrupts an operation already in progress. Windows gets no say at all.
Same PC, same update — completely different risk. Postpone before it starts, never interrupt after it starts.
3
It Looks Frozen — Is It Really?
Update screens can sit at one percentage for a long time, especially on older hard drives and big feature updates. Before deciding anything:
Watch the disk activity light (or the drive LED on a desktop). Blinking or flickering means work is happening — leave it alone.
Give it real time. Thirty to sixty quiet minutes is normal on slow hardware; a feature update can take longer. One full hour with zero disk activity is the earliest point to even think about intervening.
Keep it powered. On a laptop, plug in the charger. A battery dying mid-install is the same accident as pulling the plug.
If a PC has genuinely been stuck for hours with no activity at all, a forced restart is the accepted last resort — and you should expect Windows to spend the next boot rolling the update back. That is repair territory, not a routine.
4
If the Power Did Go Out Mid-Install
Power the PC back on and let it sit — Windows usually detects the incomplete update and rolls it back automatically. Do not interrupt the rollback either.
If it boots normally afterwards, open Windows Update and let the update try again, this time uninterrupted.
If it loops or fails to start, that is a stuck or damaged update state — the repair order for that is in the stuck-update case in this series, and it starts with patience and backups, not with more force.
🎥 Watch the Complete Video Guide
See the missing shutdown option and the CMD fix done live on a real PC — every step on screen.
My laptop battery died during an update install. Is Windows ruined?
Usually not. On the next start, Windows normally detects the incomplete update and rolls it back to the previous state, which takes time but works. Charge the laptop fully, let the rollback finish, then run the update again while plugged in.
How long is too long for the working on updates screen?
There is no exact number — hardware speed matters. On a slow hard drive, an hour at one percentage with a flickering disk light can still be healthy progress. Treat one hour of total disk inactivity as the point where intervention becomes reasonable, not one minute of impatience.
Is using shutdown /s /f the same as holding the power button?
No. The command is an orderly software shutdown used before installation begins, while the update is only pending. Holding the power button cuts hardware power instantly, and doing it during an active install can interrupt files mid-write. That timing difference is the whole point.
This guide is based on a Technical Anshu video • Stuck on any step? Ask in the video comments — help is there 🙏