How do I stop OneDrive from storing locally?

Go to PC Settings, using the PC Settings tile in the Start menu, or swipe in from the right edge of the screen, select Settings, and then select Change PC settings. Under PC settings, select OneDrive. On the File Storage tab, turn off the switch at Save documents to OneDrive by default.

Why are my OneDrive files on my desktop?

Whether you save by default to your computer or to OneDrive, all your files are available on your PC. The OneDrive app built in to Windows 10 synchronizes your files between OneDrive and your computer, so they’re backed up, protected, and available on any device.