After Windows 10 version 1809 update Build 17763.1, my Backup and Recovery now shows error 0x80070013 and will not backup as before

Good for you the fix worked.

OneDrive, after the 1st, maybe 2nd total loss of data .... W7 BU will become REALLY popular again.

As for the cloud ... My personal data wont be going there.

Thanks, Backup ran successful after I disabled "Files on Demand" in the OneDrive setting.

This problem with the new 1809 version is not connected to OneDrive.

I didn't have a problem to backup in 1803 version where OneDrive users have had.

I don't even use OneDrive. It's not in the task tray, and when I open it, it's not even connected to my account.

It's a new bug introduced in 1809 and nothing I tried can fix it.

I really hope Microsoft will fix it.

This IS a problem with OneDrive, Files On Demand**,**Uncheck this option.

W.BU cannot BU a cloud file, this is where the error is, there is a fix but only on the server side.

This has been thoroughly discussed at Microsoft Technet, MS is aware of this problem and has yet to deal with it. MS is aware of the problem, they Choose NOT to do anything about it for now, should OneDrive prove to be unreliable or unused by clients.

W7 BU was 'Revived' for W10 (Removed for W8/8.1), they will NOT get rid of it again, they will just leave it alone for now.

You do not need another client for doing BU's as everyone is blindly repeating.

https://social.technet.microsoft.com/Forums/en-US/d612c19a-0f18-431a-9d75-9fb5dfd11aca/windows-10-1803-client-backups-failing-media-write-protected-errors?forum=dataprotectionmanager

It is still not working on windows 10 17763.55

The option to back up is still shown; therefor let us hope this fault gets repaired soon.