To free up space from locally available OneDrive files to save space on your local PC, do the following:
Using OneDrive On Demand File Management
OneDrive has several different ways of managing your files. It can keep files only on your local PC, only in the Cloud or a combination of both. The information below explains how each option works, when you might use it and how to toggle between them to most efficiently manage your files to optimize space and accessibility.
You will see icons to the right of your one drive files. Below are the different file statuses represented by those icons.
A blue cloud icon next to a OneDrive file or folder indicates that the file is only available online. Online-only files don’t take up space on your computer. You see a cloud icon for each online-only file in File Explorer, but the file doesn’t download to your device until you open it. You can’t open online-only files when your device isn’t connected to the Internet.
When you open an online-only file, it downloads to your device and becomes a locally available file. You can open a locally available file anytime, even without Internet access. If you need more space, you can change the file back to online only. Just right-click the file and select “Free up space.”
Only files that you mark as “Always keep on this device” have the green circle with the white check mark. These always available files download to your device and take up space, but they’re always there for you even when you’re offline.