It is possible to stop syncing a document library or selected folders within a document library in OneDrive.
Note: Sync settings are unique to each computer. If multiple computers have the OneDrive client installed and are synced to the same document library and folders, the steps to stop syncing will need to be performed on each computer.
Step 1. Select the OneDrive cloud icon in the taskbar notification area
For Mac, the taskbar is located at the top right of the desktop finder window.
For Windows, the taskbar this will be located in the at the bottom of the desktop window (note: It may be necessary to select the arrow icon in order to show all the hidden icons in the taskbar).
Step 2. Open OneDrive and click on Help & Settings
For Mac, select the "Preferences" option.
For Windows, select the "Settings" option.
Step 3. Stop syncing an entire document library
For both Mac and Windows operating systems, select the Account tab. (In order to stop syncing specific folders within a document library, skip the next part of this step and proceed to Step 4.) Locate the document library to stop syncing and click on Stop Sync.
Note: Once the stop sync processes have been completed, any folders or files that were downloaded as local copies (via the Always keep on this device option) will remain on the work computer hard drive BUT will not longer be syncing with SharePoint document library. Best practice is to manually delete these files to avoid any confusion or conflicts with document versioning.
Step 4. Stop syncing specific folders within a document library
In the Account window, locate the document library that contains the folders to stop syncing. Click on Choose Folders, then uncheck any folders to stop syncing.
Windows folder selection window.
Mac folder selection window.
