How do you purge deleted files

two questions:

(1) does the WD Smartware automatically backup files when it notices they have been updated on your computer? and (2) is there a way to purge backed up files if the source files are deleted?

the reason I ask is that I went to retrieve a file I accidently deleted on my computer, and found the version on WD live was 6 months old! (and I have changed it in the last month at least)

I also noticed that some files are backed up that I deleted off my computer months ago.  how do I get rid of them on the drive as well?

thanks for your help!

There’s not an option to delete old file

this is a backup not a sync software

you might want to consider other options since it looks like Smartware is not for you