Mac OS X is automatically creating .DS_Store file as soon as you’re working on some network drives. This is used to store some custom attributes.
If you want to prevent the OS to create those files automatically, follow the steps below:
- Open up a Terminal
- Run this command
defaults write com.apple.desktopservices DSDontWriteNetworkStores true
- Restart your Mac
Once this is executed, the DS_Store files will only be created on local drives.