Error saving the document Untitled 1

Error creating object.
Could not create backup copy.

I have also had another reason for not saving a file, “Do not have Administrative Rights”.
I am the Administrator of my system, so I possess all rights.
LibreOffice never use to have a problem like this.

I am the Administrator of my system, so I possess all rights

Common misunderstanding on Windows. Being the Administrator (or being a member of the Administrators group, just means that you could gain almost all rights (permissions) but not that you already possess 'em by default.

Ok Opaque, Thanks for that info .

It is probably an operating system or antivirus setting to prevent ransomware. See question 267726. Cheers, Al

Thanks Earnest Al, that was the problem. Cheers, paperpusher