Backup folders & files with OneDrive online Log into OneDrive here ,  utilizing a Microsoft Account. Once logged in,  OneDrive Home  will appear. From the left menu pane, select  My Files . Within  My Files , select  +Add New , then select  Folder . The Create a folder  window will open. Name the folder  File Backup , change its colour as desired, and select  Create . From  My Files , select the new  File Backup  folder. Within File Backup , select  +Add New , then select  Folder Upload . A File Explorer  (Windows) or  Finder  (Mac) window will open. From the left menu pane, select  Desktop ,  Documents ,  Downloads , or  Pictures . Then, select  Upload . A prompt will appear notifying of the quantity of items in the folder, and a confirmation to begin the upload. Select  Upload . While files upload to OneDrive,  leave the browser page open . Closing the browser page or shutting down the computer will interrupt the download process. If a folder is of a significant size, its contents may need to be uploaded in smaller chunks. Repeat the upload steps until the  Desktop ,  Documents ,  Downloads , and  Pictures  folders are uploaded into OneDrive. Mac requires pictures to be  exported from the photos app . When complete, all uploaded files will be present and accessible through OneDrive, both on the web, and through a synchronized application.