Online vs offline storage
Normally, the Onedrive folder on your PC is an exact copy of everything stored in your online Onedrive account. However, it’s possible to configure the settings so your files are only stored online, to free up space on your PC’S hard drive.
Right-click the Onedrive cloud icon in the notification area of the taskbar and select Settings, then the Settings tab. Tick the box under ‘ Files On-demand’ and click OK. Open Explorer, right-click Onedrive in the sidebar and select ‘ Free up space’.
It takes a while, but eventually all the files and folders in Onedrive will have a cloud icon on them – to indicate that they are stored online. These files can still be accessed – it just takes a little longer to open them because they have to be downloaded first.
Access your PC’S desktop on a mobile by setting the desktop location to Onedrive