Windows 10 Windows 10 Backup

[IanBrooke]

Can anyone tell me for sure, with Windows 10 Backup, if I set it to copy a folder (or single files) each night, if nothing has changed in that folder (or file) does Backup still copy it? I want to be sure that copies to a cloud server are minimized.
Edit: Also, if a single file in a folder has changed, does it only copy the changed file or the whole folder?

 

[livix07]

Can anyone tell me for sure, with Windows 10 Backup, if I set it to copy a folder (or single files) each night, if nothing has changed in that folder (or file) does Backup still copy it? I want to be sure that copies to a cloud server are minimized.

Whether it copies all of it again or not, in the end it will have the same size if nothing has changed and as far as I know Windows does not allow duplicate files and folders. Just try to create identical files or folders and see what happens.