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

On 10/18 the error code is: 80246007

http://windows.microsoft.com/en-ca/windows/windows-update-error-80246007#1TC=windows-7

(Microsoft search for

    0x80246007

)

<quote>

you might need to change or restart the Background Intelligent Transfer Service (BITS).

</quote>

FWIW in W10 I have noticed that there is now a BITS troubleshooter.  Apparently that does not exist on W8.1.  However, previously some related repairs have been done by the Windows Update Troubleshooter (aka WUT).  So, try that.  You shouldn't need to use the download.  Just try the built-in one.

Good luck

Robert Aldwinckle

This error may appear anytime a Windows Update fails. To investigate possible solutions, we need to start with the specific error code.

We can do this by viewing your update history.

1. Swipe in from the right edge of the screen (or, if you're using a mouse, pointing to the lower-right corner of the screen and moving the mouse pointer up), and tap or click Settings.
2. Tap or click Change PC settings, and then Update and recovery.
3. Tap or click View your update history.

View failed update error code.

Please post here with your error code, so that the Community can try to help guide you appropriately.

I have two different codes from three different days when the updates failed.  

Windows 8.1 Update for x64-based System KB291935

On 10/17 and 10/19 the error code is: 80070002

On 10/18 the error code is: 80246007

Please respond as soon as possible. My Acer is running exceptionally slow, and I'm hoping this is the issue that will fix that. I need to know how to get the updates!

security update for internet explorer flash player for windows 8.1 for x64-based system & update for windows 8.1 for x64-based systems are failed to installed...now what can I do?

KB3099406

check bios settings, make sure secure boot is disabled