Quick Fix to Computer Won't Start after Windows Update

Posted by @Ivy

February 12, 2018

“Computer won't start after Windows Update” is a problem that drives many users crazy. Be relax! Follow this article and find solutions here.

Windows Update is a free Microsoft service, which is used to provide updates like service packs and patches for the Windows operating system and other Microsoft software. Also, it can be used to update drivers for popular hardware devices.

These Updates often contains feature enhancements and security updates. The aim is to protect your computer from malware or other problems.

Real Case about computer won't start after Windows Update

Windows Update is very useful, but it still can cause problem. “computer won't start after Windows Update” is one of the problems you may encounter. Here is a scenario for this problem.

My computer automatically restarts after the latest set of Windows Update. After it restarts, it comes up with a usual screen that states it is installing the updates.

All the processes are divided into 3 steps. The first is completed easily. But when the process starts the second steps, my computer will suddenly restart again with a message “Loading Files”, and then comes up with a screen that says Windows could not start. At last, it asks me to restart my computer. I do so. But my computer loops and go back to Installing Updates screen again and again.

How to fix Windows 7/8/10 cannot boot after update?

In general, if you encounter this problem, the simplest way is to restart your computer. Because whatever problem the updates caused could clear itself up with a simple power off and power on. If that does not work, you try the following methods.

System Restore in safe mode

Step 1. Start your computer, and press F8 repeatedly before the Windows logo occurs. Then, it will lead you to the Advanced Boot Options with several available options. You can select Safe Mode.

Safe Mode

Step 2. Search System Restore in the search box and select it from the list.

Step 3. Select one of the available restore points and restore your computer.

Note: By default, System Restore will tick the recommended restore option. If the restore point is not working properly at that moment, you can tick Choose a different restore points.

Step 4. Confirm all your settings and click Finish the run the pending operation.

Step 5. Restart your computer and check if this problem is solved.

Run sfc via command prompt

Step 1. Access the Advanced Boot Options and opt Repair your computer, then select Command Prompt at the System Recovery Options. Also, you can go to the command prompt via installation media.

Step 2. Type the following command in the command prompt and press Enter.



Note: c:\ refers to the system drive of your computer.

Step 3. The command prompt will scan the integrity of all the protected system files and replace it. Then, you can restart your computer and check if the issue is fixed.

Delete cleanup.xml and pending.xml

Step 1. Go to the command prompt via System Recovery Options.

Step 2. Delete the cleanup.xml folder in the command prompt. You can type the following commands and press Enter.

del c: \windows\winsxs\cleanup.xml

Delete Cleanup.xml

Step 3. Delete the pending.xml folder in the command prompt with following command.

del c: \windows\winsxs\pending.xml

Step 4. Type exit to quit this window.

Step 5. Restart your computer and check if your computer can start normally.

Sure-fire way to fix computer won’t boot after Windows Update

If your problem still cannot be fixed, you can do Offline System Restore under Windows PE bootable environment.

Offline System Restore can bring your computer back to the working state (including system files, installed programs, etc.) via system image backup you made in advance, especially when your computer is unbootable.

Before you start to restore your computer, make sure that you have created a bootable media and a system image backup with Backup and Restore software AOMEI Backupper.

Step 1. Set your bootable media (eg: CD, DVD, USB drive) as the first boot device, then save the changes and exit this window. After that, AOMEI Backupper will start automatically.

Step 2. Click Restore, and select a backup image to restore your computer. If your backup is on the external hard drive, you can click Path and restore backup from external hard drive.

System Image Backup

Step 3.Select a backup point if you created differential backup and incremental backup before. If not, select the Full Backup and click Next.

Backup Point

Note: If you want to restore to a different location, you can tick Restore system to other location and select a partition.

Step 4. Review the operating summary and click Start Restore to start the operation.

Offline System Restore

Step 5. Take out your bootable media, then restart your computer and reset the boot order in BIOS.

Besides, you still can do offline system restore via AOMEI PXE tool. It can help you boot your computer successfully and restore your computer, even restore computer with dissimilar hardware.

This software is also applied to laptop won’t boot after Windows 10/8/7 update.


Whatever problem your computer encounter, there will be dozens of ways you can use. SO do computer won't start after Windows Update.

But you will spend much time in finding solutions. It's time-consuming. And no one can promise that there is a way works for every user. What's more, you will be a risk of losing data owing to errors in operation.

The prevention measure is too important to take chances. You are supposed to create a backup when your computer is in a good state. With one or more backup, you can restore it at any time.