Error: We couldn’t complete the updates, Undoing changes. Don’t turn off your computer.

             Error code 800F0902

Must be a new code.  The last one in that category is  800F0901

http://support.microsoft.com/kb/938205

Find a log where it was used.  What's the context?

I am getting the same thing wont install any updates: Error code 800F0902

Hi Merry,

Try and follow the suggestions from the given article: 

Windows Update error 0x8007000d:

http://windows.microsoft.com/en-ca/windows-8/windows-update-error-0x8007000d  

Important : While performing refresh apps you installed from websites and DVDs will be removed. Apps that came with your PC and apps you installed from the Windows  Store will be reinstalled. Windows puts a list of removed apps on your desktop after refreshing your PC.

Thanks,

Hi,

1. Did you try to run an antivirus scan?
2. Did you try disabling an antirust software?

You may try the following steps and see if that helps:

Method 1:

Run the DISM tool If the problem continues, use the Deployment Image Servicing and Management (DISM) tool to fix Windows Update corruption errors. To do this, follow these steps:

1. Open an elevated command prompt.
2. Run the "DISM.exe /Online /Cleanup-image /Restorehealth" command.

Important When you run this command, DISM uses Windows Update to provide the files that are required to fix corruptions. However, if your Windows Update client is already broken, use a running Windows installation as the repair source, or use a Windows side-by-side folder from a network share or from a removable media, such as the Windows DVD, as the source of the files. To do this, run the following command instead:

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource\Windows /LimitAccess

Note Replace the C:\RepairSource\Windows placeholder with the location of your repair source. For more information about using the DISM tool to repair Windows, see Repair a Windows Image

(http://technet.microsoft.com/en-us/library/hh824869.aspx)

To learn more about this tool, go to Fix Windows corruption errors by using the DISM or System Update Readiness tool

Method 2 : Try to scan the computer using  an antivirus installed on the computer. Or you may run a free online scanner from Microsoft.

Microsoft Safety Scanner:

http://www.microsoft.com/security/scanner/en-us/default.aspx

Note:

The Microsoft Safety Scanner expires 10 days after being downloaded. During this 10 days, it will remove all the virus infected files and folders. I suggest you to create a backup of your data and then Install Microsoft Safety Scanner.

Now try to install the updates and see if they install. If not, try method 2.

Method 3: Temporarily disable anti-virus software installed on the computer.

Note : Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.

Thanks,

Hi Kelpie,

When you try to install updates from Windows Update or Microsoft Update, you may receive error 0x80073712, and the update does not install.

This issue may occur if the Component-Based Servicing (CBS) manifest is corrupted.

Refer to this article:

Windows Update error 0x80073712:

http://support.microsoft.com/kb/957310/en-us

Let us know the results.

Thanks,