Here are some of the error messages you might encounter: In some instances, as you can see in the image above, you might also encounter Windows Update error 0x8000ffff alongside this error.
Windows Update error 0x8007012f
If you’re faced with this issue, you can try our recommended solutions in the order presented below to resolve the issue. Let’s take a look at the description of the process involved concerning each of the listed solutions.
1] Run Windows Update Troubleshooter
More often than not, running the inbuilt Windows Update Troubleshooter fixes update errors on Windows 10. After you run the troubleshooter and rerun Windows update but still receive the error 0x8007012f, you can try the next solution.
2] Clear SoftwareDistribution and catroot2 folder contents
You may clear the contents of the SoftwareDistibution folder and the catroot2 folder and then try again.
3] Clear pending.xml file
Open an elevated command prompt windows, type the following and hit Enter: This will rename the pending.xml file to pending.old. Now try again.
4] Clear the BITS queue
Clear the BITS queue of any current jobs. To do this, type the following in an elevated CMD and hit Enter:
5] Run Background Intelligent Transfer Service Troubleshooter
Run the Background Intelligent Transfer Service Troubleshooter and see if it helps. Background Intelligent Transfer Service or BITS helps in the transfer, download or upload of files between a client and server, and provides progress information related to the transfers. It also plays a role in the download of files from a peer. This Windows Service is essential for Windows Updates to work properly. If need be, you may enable BITS manually on your Windows 10 computer. Once you complete the operation, restart your device and on boot, rerun Windows Update. The process should complete successfully without the error.