How do I fix windows error update 8 to 8.1 0x80070003?

It is look like the same issue of 0x80073712 error.
You can solve this error with the help of this post - How to Solve Windows 10 80073712 error

You can fix the problem the same way 0x8007042b Error code Windows 10 Update problem How to fix

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First you have to update Windows 8 before you can update Windows 8 to Windows 8.1
Terry

To fix this windows error 0x0000007E you should follow the given below instructions:-

·The first is to update your antivirus.
·Search for the file which creates this issue.
·Delete the corrupted file due to which this error occurs and again register it. The best option is to use third party repair tool to fix this windows error.
This tool not only fixes this windows error 0x0000007E but also fix other windows system errors. You can download this tool in any of the windows operating system versions and install it.

Copied from windows website.

Windows Update error 0x80070003 Applies to Windows 8.1, Windows RT 8.1 If you receive Windows Update error 0x80070003 or 80070003 when you use Windows Update, try running the Windows Update Troubleshooter.