Windows 10 update failed: We couldn't complete the updates, undoing changes

After installing the official version of Windows 10, the recent computer will always restart automatically every time it starts up. The information displayed on the screen when restarting is:

We couldn't complete the updates, undoing changes.

 

Checked under Settings - "Update and Security -" Update Records, there is a record of many installation failures for an update. The solution is as follows

 

Original: http://answers.microsoft.com/en-us/windows/forum/windows_10-update/cumulative-update-for-windows-10-for-x64-based/792cfa6a-c08d-4ddb-be99-71b440d51252? auth=1

 

THIS SOLVED IT FOR ME 

Reset Windows Update components and install the update.

 

I suggest you the following steps:

1. Press Start on the keyboard, type cmd in the search bar and then select “Command Prompt (Admin)” from the menu.

2. Stop the BITS, Cryptographic, MSI Installer and the Windows Update Services. To do this, type the following commands at a command prompt. Press the “ENTER” key after you type each command.

   • net stop wuauserv

   • net stop cryptSvc

   • net stop bits

   • net stop msiserver

3. Now rename the SoftwareDistribution and Catroot2 folder. You can do this by typing the following commands in the Command Prompt. Press the “ENTER” key after you type each command.

   • ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

   • ren C:\Windows\System32\catroot2 Catroot2.old

4. Now, let’s restart the BITS, Cryptographic, MSI Installer and the Windows Update Services. Type the following commands in the Command Prompt for this. Press the ENTER key after you type each command.

   • net start wuauserv

   • net start cryptSvc

   • net start bits

   • net start msiserver

5. Type Exit in the Command Prompt to close it.

 

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My own conclusion is that there are some problems with the Windows 10 driver now. Both my Windows 10 computers have failed to install this update. For this reason, I have reinstalled the system at least 3 times on each computer. The latest installation was in December 2015. Download the official latest mirror. But it will restart automatically every time it is turned on. This problem can only be solved by Microsoft. After using it for a long time, I still think it is much easier to use than win7 and win8. Let's bear it...