I'd try working through these steps.
https://learn.microsoft.com/en-us/windows/deployment/update/windows-update-resources#reset-windows-update-components-manually
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Trying to update microsoft windows 10 but keep getting hex error code 0x80242016 from prompt. Go through process from 'get help'. Work through command DISM.exe /Online /Cleanup-image /Restorehealth and then sfc /scannow but after restart update still fails!
HELP!
I'd try working through these steps.
https://learn.microsoft.com/en-us/windows/deployment/update/windows-update-resources#reset-windows-update-components-manually
--please don't forget to Accept as answer if the reply is helpful--
Thanks so much. I'll give that a try and let you know :-)
Try to run the following script to reset Windows components.
Reset-WindowsUpdate.ps1
https://gallery.technet.microsoft.com/scriptcenter/Reset-WindowsUpdateps1-e0c5eb78
This script will completely reset the Windows Update client settings. It has been tested on Windows 10. It will configure the services and registry keys related to Windows Update for default settings. It will also clean up files related to Windows Update, in addition to BITS related data.
Then restart computer and check for update again.
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