By Ailsa / Last Updated August 27, 2019

Computer won’t start after Windows 10 update

Generally speaking, Windows 10 will check for updates for you regularly to keep your device up to date with the latest features over Internet. The Windows updates will be downloaded and installed automatically to make sure your device is secure and up to date, which means you will receive the latest fixes and security updates to help your device run efficiently and be protected. Your device should be restart to finish Windows updates.

Sometimes, one of the problems caused by Windows 10 updates might occurs to you: computer won’t start after update Windows 10.

The case

My HP Envy 17 laptop had an issue today, so I tried to restart my laptop. Windows 10 started to update and after 30% it said something went wrong with the update while restarting. Now I can’t even boot Windows 10 anymore. I can only see the Windows logo and some dots spinning around in a circle, after 2-3 times restarting, nothing happened.

I can start the PC in safe mode, but how can I solve the Windows 10 won’t boot problem? Any suggestions? Any help would be appreciated.

Full solutions for Computer won’t start after Windows update

Microsoft has received reports of some customers on a small subset of older AMD processors getting into an unbootable state after you install January 3, 2018—KB4056892. Or other reasons cause the Windows 10 unbootable issue, you could follow the below text to fix your Computer won’t start after Windows 10 update step by step with 6 solutions:

Solution 1: Startup Repair

Windows 10 boot failure issues or errors should be fixed automatically via Startup Repair, you have to try this method first:

1. Create a Windows PE bootable media or use Windows installation disc.

2. Change the boot order in BIOS and boot your computer from the bootable media or installation disc.

3. Press Next in Windows Setup window, and then choose Repair your computer option.

4. Select Troubleshoot -> Advanced Options -> Startup Repair.

Solution 2: Check and repair Windows 10 errors via Command Prompt

1. After entering Repair your computer option, choose Troubleshoot -> Advanced Options -> Command Prompt.

2. Enter the following command: sfc /scannow

This command will scan system files and repair the errors or corruptions. After finishing the process, you could restart your computer to check if the problem exists.

Solution 3: Uninstall Windows 10 updates in Safe Mode

To fix PC is not booting, you could get into Safe Mode to uninstall Windows updates:

  • Boot your computer with Windows installation disk, then address the path:

  • Repair your computer -> Troubleshoot -> Advanced options -> Command Prompt.

  • Then type: bcdedit /set {default} safeboot minimal

  • Close the command prompt and choose Continue after the command finished. Your Windows 10 will automatically enter Safe Mode after restarting.

  • Select the Start button, then select:

  • Settings > Update & security > Windows Update > Advanced options > View your update history > Uninstall updates.

  • Select the update you want to remove, and then select Uninstall.

Solution 4: Fix MBR for Windows 10/8/7

The corrupted MBR should account for computer won’t start after update in Windows 10. There are two ways to fix MBR for your Windows 10 computer.

Fix MBR with command prompt

Input these commands once you enter Command Prompt, and then restart the machine when it completes.

  • bootrec.exe /fixmbr

  • bootrec.exe /fixboot

  • bootrec.exe /rebuildbcd


Fix MBR with AOMEI Partition Assistant [Free]

Another powerful way to fix MBR is using AOMEI Partition Assistant Standard, which is a freeware to manage your hard disks and partitions. You can easily repair computer won’t boot after Windows 10 update problems with this software. Now download it to have a try.

Before that, you have to create WinPE bootable media with a normal Windows 10 computer, then boot your computer from this media, then fix MBR, here is the instruction:

1. Choose Make Bootable Media at the left panel under Wizards. Make sure you have inputted a USB flash drive into your Windows 10 computer (at least 13GB). Hit Next.

Make Bootable Media

2. Tick USB Boot Device, click Proceed to create a WinPE bootable media.

Choose MBR Type

3. Then boot your Windows 10 PC from the media, run AOMEI Partition Assistant on the desktop.

4. Right click the system hard disk and select Rebuild MBR.

Rebuild Data Disk MBR

5. Choose MBR type for Windows 10.

Choose MBR Type

6. Click Apply at the tool bar.

Besides, you could use the Surface Test or Check Partition function of AOMEI Partition Assistant Standard to check bad sectors or errors for system hard drive.

After all these solutions, you could migrate OS to SSD or Copy Disk to another SSD or HDD to save your files, installed programs and Operating system, etc if the computer still unbootable. Or you could try Professional edition with more advanced functions.

Solution 5: Check errors or bad sector for system hard drive and repair it

The error or bad sector could be possible cause for computer won’t start after Windows 10 update. You could use it to check errors:

1. Boot your computer with Windows installation disk, then address the path:

Repair your computer -> Troubleshoot -> Advanced options -> Command Prompt.

2. Type chkdsk /? to see the supported commands. The syntax of chkdsk command is:

chkdsk [volume[[path]filename]]] [/F] [/V] [/R] [/X] [/I] [/C] [/L[:size]]

Notes: /R Locates bad sectors and recovers readable information (implies /F); /F Fixes errors on the disk. For example, to find and repair errors that are found in the E drive, use the following command: chkdsk E: /f

3. After it’s done, your computer should be restarted now.

Solution 6: System Restore

Restore you Windows 10/8/7 if the above mentioned ways not working. Boot your computer from bootable media or installation disc, choose Repair your computer instead of install now. Choose Troubleshoot -> Advanced Options -> System Restore.

Choose a Windows 10 backup point (if you have created one) to restore your computer. Then problem will be solved.